The Intex Solar Heater Mat is an energy efficient way to capture the sun's rays to heat up your above ground swimming pool. Designed to work with a variety of Intex filter pumps, this heater warms the water with environmentally friendly solar heating technology. Eco-friendly solar technology increases temperature of the pool water by approx. 3 ~ 5 DegreeC (5 ~ 9 DegreeF) depending on weather condition. Simple hook up, compatible with filter pump up to 1/2 hp or pump flow rate < 2500 gal/hr (9463 L/hr). Suitable for above ground pools up to 8000 gal (30,280L). 1m sq (11ft sq) surface to absorb sun's rays. Includes: 1 1/4 " (32mm) hose attachment points. 2 adaptors B for 1 1/2" (38mm) hose connection. Includes: 0.5m (1 1/4" / 32mm diameter) connecting hose. Bypass valve. Dimensions: 1.2m X 1.2 m / 47" X 47".