Extend your swim season into early spring and late fall with this 4-panel solar pool heater set, sized at 4 ft. x 10 ft. per panel for a combined 160 sq. ft. of UV-stabilized HDPE solar collector. Connected inline with your existing pool pump and filter return, the panels channel pool water across their full surface and use direct sunlight to lift water temperature several degrees over a sunny day — without adding to your electric or gas bill. Built from corrosion-resistant high-density polyethylene, the panels stand up to chlorinated pool water, saltwater systems, full summer sun, gusty afternoons, and cool overnight rain through multiple swim seasons. Universal sizing fits most round, oval, and rectangular above ground pools, and the format also suits smaller inground pools where a low-cost solar supplement makes the difference between a chilly dip and a comfortable family swim. The kit ships with the connectors, end caps, and hose components you need to hook the panels into your pump return — simply route the pool water through the solar heater system and let the sun handle the rest. A practical, energy-conscious upgrade for homeowners running residential pools through cooler months.