【Directly Replacement】Replace your truck topper camper shell, truck cap bed tonneau cover, RV QUEEN bed lift foam lightweight mattress, rv basement compartment door, trailer cargo door, or tanning bed with Euplokeer gas strut 20in. | 【Compatibility】20in gas spring compatible with interchange numbers ML1450、ML14-50、ML-14-50、ML3450、ML34-50、ML-34-50、NI230050、NI2300-50、NI-230050、NI-2300-50、NI530050、NI5300-50、NI -530050、NI-5300-50、NP200050、SE200P50、SE800V50、SE812A50、SG359004、SL1450、SL14-50、SL-1450、SL-14-50、SL14501、SL14-50-1. Ensure compatibility by comparing the cylinder part numbers of your original gas struts before purchasing. | 【Enhanced Compatibility】If you're working on a DIY project like a food truck window, a wooden box lid, or a shed window, you'll need a pair of gas shock lift lids with the appropriate strength and a pair of 10MM BALL STUD MOUNTING BRACKETS. Search for ASIN B0BYXQGY8R on Amazon to find the relevant products. | 【Product Basic Information】This listing includes 2 gas shocks designed for multi-purpose use. Extended Length: 20.00inches. Compressed Length: 12.00inches. Installing this 20-inch gas strut is a breeze, requiring only a flat head screwdriver. | 【How to choose】Determine the pound rating or OEM interchange number of your old cylinder, then measure the extended length of your existing gas shock lift. Compare the pound force, OE number, and measurement with our 20-inch gas shock. | 【Care from the Euplokeer brand】Enjoy 24-hour email response and a 15-month product exchange service. Euplokeer goes above and beyond. Feel free to reach out to us anytime with your inquiries.