SunQuest solar pool heaters feature premium quality, superior technology, highest rated performance and second-to-none reliability. It simply works - and keeps on working so you can enjoy evening swims from early spring through late fall in luxurious warm water. SunQuest's high performance swimming pool solar heating systems can be installed in just 30 minutes. These panels are Professional Grade quality, equal or better to other systems costing thousands of dollars. The Sunquest Solar Panels are simply unsurpassed in value! The panels come standard with connectors to attach to 1-1/2" & 1-1/4" flexible hose.