4-2X20' SunQuest Solar Swimming Pool Heater Complete System with Roof Kits br click here to buy SunQuest Solar panels are designed for both In-ground and Above-ground swimming pools br MAX-FLOW design with 2 OD headers - better water circulation - less back pressure on your pump br Compatible with your existing pool pump br Increases pool water temperature up to 10 degrees br SunQuest is an easy do-it-yourself installation