Energy Efficient Spa Cover

This cover enhances the spa performance while improving the energy efficiency by as much as 50% high density thermal-resistant foam provides extra insulation and minimizes heat loss. Spa stays hot easier – with only half the energy use and half the energy cost protects spa from punctures, scratches and weather damage Includes belt with locking safety buckle Fits Intex? 4-person round Bubble Massage PureSpa? models