Highest heating efficiency in the industry – Compatible with your existing pool pump Better than a gas heater – no gas line – no gas bills – no pollution Will quickly heat your pool with free, reliable heat from the sun – More Tubes per panel than other brands For best results for Sungrabber Pool Heaters, more than a single panel may be required. These are available in different quantities, (2 panels, 3 panels, 4 panels, etc.) with all the panel to panel attachments required to connect them together. With one single panel 20 ft of pipe/hose Min. is required (not Included) Includes a 310mL bottle of LiquidHeat Solar Blanket, to help keep the Heat in your Pool!