HPX1065: Features: -Air bubble solar pool cover. -Increase water temperature while reducing heat loss at night. -Sturdy welded seams. -For above ground and in ground pools. -Oval triple-laminated poly treated against destructive UV rays for long-lasting durability. -Grommets every 3 to 4 feet and includes cable and ratchet kit. -Navy blue or green top with black bottom is light restrictive to resist algae and bacterial growth. -Covers are 3' larger than pool size to accommodate water drop. -Note: To fit non standard size pools order next larger size-trim to fit.