Stretch your swimming season and cut heating costs with this 2-panel solar pool heating system, which harnesses free sunlight to warm your water naturally. Two collector panels join together to reach a total length of 10, 16.4, or 20 ft at 2.5 ft wide, converting the suns energy into heat that raises your pool temperature efficiently. Built from built-to-last PE with strong heat absorption, the panels keep performing across a broad outdoor temperature range, from roughly minus 20 to 90 degrees Celsius, so they make the most of every bright day. The roll-up design carries easily and adapts to your space, fitting both above-ground and in-ground pools and installing on the ground, an inclined frame, or a roof wherever the sun hits best. A complete connector kit, with end caps, hose clips, connector hoses, elbow connectors, and hose adapters, lets you link the heater firmly to your existing water hose right out of the box for a leak-resistant setup. Picture easing into warmer water on a crisp morning, courtesy of the sun rather than your utility bill. Durable and long-lasting, this high-grade PE system helps your family enjoy more comfortable swim days across the year. Note that it is not recommended for use on asphalt shingle roofs.