13x20x1 MERV 11 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Gold MERV 11, comparable with MPR 1200 Allergen or Micro Particle MPR800. | MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x1 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x1 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x1 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x1 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x2 MERV 11 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Gold MERV 11, comparable with MPR 1200 Allergen or Micro Particle MPR800. | MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x2 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x2 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x2 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x2 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x2 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x2 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x4 MERV 11 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Gold MERV 11, comparable with MPR 1200 Allergen or Micro Particle MPR800. | MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x4 MERV 11 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Gold MERV 11, comparable with MPR 1200 Allergen or Micro Particle MPR800. | MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x4 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x4 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x4 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x4 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x4 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x20x4 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x1 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x1 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x1 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x2 MERV 11 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Gold MERV 11, comparable with MPR 1200 Allergen or Micro Particle MPR800. | MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x2 MERV 11 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Gold MERV 11, comparable with MPR 1200 Allergen or Micro Particle MPR800. | MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x2 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x2 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x2 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x2 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x2 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x2 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x4 MERV 11 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Gold MERV 11, comparable with MPR 1200 Allergen or Micro Particle MPR800. | MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x4 MERV 11 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Gold MERV 11, comparable with MPR 1200 Allergen or Micro Particle MPR800. | MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x4 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x4 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x4 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x4 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x21.5x4 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x25x1 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

13x25x1 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.