There are many choices when it is time to cover your spa. If there ever was a product where the lowest price is the worst deal, buying a replacement spa cover is it. Good quality spa covers use the highest grade of marine vinyl, the most dense material in the foam cores, steel bracing along the major seams and steel plates to attach to the cover’s lifter device. A quality built spa cover should last 5-10 years depending on its exposure to rain, humidity and sun light. Expect to pay between $300 and $450 for a quality cover depending on the size. Whenever possible, make certain the replacement cover is made by the manufacturer of your spa to ensure a complete, tight fit to your spa surface.