Dips in the pool can get chilly even in the summer seasons. Heat your pool efficiently with the Horizon Ventures ES20SP-1 20-by-30-Foot Eco Saver Solar Panel Heating System. This 20 ft. solar heating panel features a large surface area, collecting free heat from the sun to warm your pool on cooler days. Versatile in install and design, this panel easily fits on the ground, rack or roof. With a unique modular design you can easily install multiple panels at once or add them on later. This eco-loving heating system requires no gas lines, no flames and no fumes with no hot surfaces to touch, making it natural and safe-to-use. Capturing radiant energy from the sun, this heater panel will heat your pool up to 10° Fahrenheit warmer in only a few day's time. Pair with the optional diverter valve kit, roof mount kit or Intex adapter kit to further suit your installation preferences. Keep your water warm and relaxing with the ES20SP-1 Eco Saver Solar Panel Heating System from Horizon Ventures.