Multi-scenario Usage: This Set of 2pcs lift supports could be used as the replacement struts or DIY modification shocks for RV Bed, Travel Trailer, Tanning Bed, Hot Tub Cover, RV Storage Door, Cellar Door, Snugtop Camper Shell, Boat Engine Cover, Boat Platform, Caldera Spas Cover | Direct Replacement of Tanning Bed: Extended Length A [in]: 19.69 (between two holes), Compressed Length B [in]: 11.81 (between two holes); Force: 267N/60Lb Per Strut, 2 Struts Per Pair | Interchange number: GSNI-5300-60, GSNI-2300-60, spd-gsni-2300-60, 8AU203468BB0267, LGP6-200-60, LGP8-200-60, 11329, 4450, 4B291749, 4B-291749, 4B-291749-W, 612605, 72628, 8195402, 87-60, C1608260, C16-08260, C1615111, C16-15111, CS2000-60-8, EAA-8700-60U, ML34-60, ML14-60, SL14-60-5, SL34-60-5, SL34-60-1, sx200p-60, 71794 | Precise Manufacturing: The gas struts sturdy, well-constructed and perform well, offering a controlled, gradual lift rather than a sudden jolt; With a 60lb capacity per strut, they provide enough support for heavy-duty lids | Application Range: ARANA 20 inch spring will be suitable for heavy lids, with lid weight between 50-65 lbs, side length ≥ 30 inch, ensuring smooth lifting and secure hold; Note: do measure the lid weight or check the oem number to buy correct items | Easy to Install: Installation was straightforward, requiring minimal tools, replaced just by loosening the clip, pop the new one into place, and click it on | The Endless Pool models this part is for are the following: Endless Pools E2000-58 2017-Current, Endless Pools E500-52 2016-Current, Endless Pools E500-58 2016-Current, Endless Pools E700-52 2016-Current, Endless Pools E700-58 2016-Current, Endless Pools X200-50 2016-Current, Endless Pools X500-50 2016-Current | 18-Month Support: Every ARANA gas strut comes with 18 months replacement support, if any quality issues, buy wrong items or missing parts, please get in touch with ARANA team for in-time solution(No ball studs or mounting brackets included）