Blue wave - Spa Solar Cover 7' X 7' - 12 Mil

Product seems less thick than other 12mil solar covers I have used in the past. The warranty though says using in waters warmer than 90 degrees will invalidate the warranty and shorten the life. This is a bit odd since this is being sold as a "Spa" solar cover. Spas are usually over 100 degrees. I'll have to see how it holds over time

I'm happy with the Thickness of the product and it appears that it will last. But don't expect to buy this with the intension of heating ur hot tub. It's good to bump up the temp by a few degrees only in the day but definitely helps in keeping the heat in the water during the night, when used along with an insulated cover. To be fair I'm sure if my tub got more sun it would work better my tub only gets sun about 4 hours a day. But this product will never take the place of a true solar water heater.

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Don't waste your time on lesser grade covers that deteriorate in less than 6 months. This one is more heavy duty than other typesworth the money. In The Swim are good folks to work with by the way...

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