SunQuest 2-2'X20 Solar Swimming Pool Heater with Add-On Couplers SunQuest is the only Do-It-Yourself panel designed for both In-ground and Above-ground swimming pools MAX-FLOW design with 2" headers - better water circulation - less back pressure on your pump. Compatible with your existing pool pump. Increases pool water temperature up to 10 degrees. SunQuest is an easy do-it-yourself installation.