VINGLI Solar Pool Heaters System Weatherproof for Inground/Above Ground

1 set of 2 pieces. Features: 1.Heat Well and Eco-Friendly: VINGLI solar heater panel doesn't require electricity but is powered by solar energy keeping the water warm quickly and longer.The tube grid design captures the most sunlight and converts it into heat.Note: Water pump pressure is not less than 0.75HP and pressure does not exceed 1.5bal(21 PSI). 2.Durabel Material: The solar collector panel is made of durable PE material, which is able to work at temperatures as low as -20°C (-1°F) and as high as 90°C (194°F). Additionally, the black PE material design has excellent heat absorption properties to maximize solar energy for optimal heating. It can efficiently heat up to 10°F if you use the quantities we recommend by the size your pool. 3.Easy to Install: This solar pool heater install was fairly easy.Works with most inground pools, pumps and filters. Each package contains dimensions of 2 x 20FT.You can connect multiple heaters together, depending on how many you need for your pool.