PERFECT FIT: Type VI Spa and Hot Tub Filter Replacement Cartridge compatible with Coleman SaluSpa filter, Lay-Z-Spa and other inflatable hot tub filters. | HIGHLY FILTRATION PERFORMANCE: Premium quality dacron fabric collects hair, leaves, dust, sediment, sand, etc; easy to clean and replace. The inflatable hot tub filter cartridge is installed inside the filter pump and captures dirt as it passes through the system. | KEEP YOUR POOL CLEAN: Keep your pool safe and clean with a Type VI Swimming Pool Filter to protect and keep your pool clean for the summers to come! | REPLACEMENT FILTER: For best results, clean your Type VI Spa filter cartridge replacement often and replace it every 2 weeks during heavy usage. Our type VI SPA filters measure 4.1” x 3.1” and are conveniently sold in 12 and 16 packs.