The Cover Guy Upgraded Full Insulated Hinge - ADD to your Hot Tub cover order - Great addition for colder climates - Helps keep heat in AMERICA'S #1 ORIGINAL & BEST HOT TUB COVER - Over 22,000 happy customers every year choose The Cover Guy Covers as the best spa cover to deal with your climate, reduce energy bills and eliminate waterlogging. The superior craftsmanship and design of our spa covers comes from over 30 years of manufacturing experience. Include the upgraded Full Insulated Hinge to your hot tub cover order CUSTOM MADE TO FIT LIKE A GLOVE -This upgrade will be added to your hot tub cover purchase. As soon as you've checked out on Amazon, our friendly team will be in touch to confirm your hot tub's specific dimensions and details so we can customize your replacement spa cover to fit perfectly. REDUCES YOUR ENERGY BILLS - Our cleverly designed hot tub covers pay for themselves in energy savings alone! With a high insulation value (varies with foam thickness) and made from quality high-density foam and marine-grade vinyl, our lightweight spa covers are designed to lock in the heat and keep out the cold, while allowing rain, ice and snow run off. SAVE $ by adding the full insulated hinge or steam stopper to help keep the heat in and the cold out. 7-YEAR WARRANTY - We're confident you'll be over the moon with your new durable and lightweight spa cover for hot tub owners. But to give you extra peace of mind, it comes with a 7 year pro-rated WARRANTY.