PSP solar blankets are designed with state of the art technology to absorb thermal energy and maintain it. Superior light diffusion properties enhance the sun’s solar rays. The result is a warmer pool, energy conservation and lower operating costs. By minimizing convective heat loss, the blanket is also effective in keeping indoor pools warmer. PSP manufactures solar blankets for both above ground and in-ground swimming pools. Solar blankets for above ground swimming pools come with 3 year warranty, whereas for in-ground swimming pool the warranty is 5 year.