This solar heater from Blue bay provides an environmentally friendly way to heat a pool using solar energy. It can be used for all types of above ground pools. It is possible to connect several products together for larger pools. This heater heats the water by 3°C in 1.7 days, based on an outdoor temperature of 20°C, at least 10 hours of sunshine per day and a 4,000-liter pool. The curved model provides an increased efficiency of 20% compared to flat models. Features: For pools up to 5,000 ltr Flow capacity of 5.5 m³/h Water capacity of 7 ltr Specifications: Color: black Gender: unisex Material: plastic, PVC Dimensions: 73.5 x 11 x 52 cm (L x W x H) Weight: 5.5 kg This solar heater comes with 2 adjustable legs, 38 mm hose (100 cm long), two connectors (32/38 mm) and hose clamps. No minimum flow required from the filter. Bypass is not necessary but recommended.