Core Covers design and produce hot tub covers for major spa manufacturers. Core has been working to provide quality products that work to reduce waste in the environment. They exceed environmental standards by recycling raw scrap and waste as possible. They have pioneered many innovations that have become industry standards, including becoming a spa and hot tub cover manufacturer to exceed specific safety requirements set forth by the ASTM (American Society of Testing and Materials). They have continued their role as a leader in the industry by also obtaining UL classifications for safety on every model hot tub cover they make. Core Covers outlast other covers by years, and every Core Spa Cover is backed by a full 3 year non-prorated warranty.