Our hard foam hot tub covers are custom built to ensure great strength, high insulation values, and come standard with UV inhibitors to prevent premature aging. Our Premium hard hot tub cover comes with an exclusive 5 year warranty. We custom build all replacement spa covers with the utmost care and diligence. We can custom make size or shape to fit any including oversized hot tubs. All covers use the highest quality heavy weight marine grade vinyl and energy efficient virgin tapered foam polystyrene inserts. Inserts are heat sealed with a 8 mil thick poly vapor moisture barrier to protect against water absorption. UV inhibitors in both the vinyl and thread for the longest life cover in the industry. Heavy gauge steel channeling provides substantial reinforcement and support to prevent sagging or foam damage.