High Flow Plastic pumps. Centrifugal electric pumps for swimming pools, with built-in pre-filter, ideals for high flow at low pressure. Pre-filter with transparent lid in polycarbonate which allows easy observation of the pre-filter basket. The pre-filter is closed with a knob system of easy accessibility. Pump body and pre-filter made in polypropylene reinforced with fibreglass, resistant to the chemical products in the swimming pool, guaranteed to last a long time. Bronze, plastic or stainless steel impeller, according to model. Motor shaft manufactured in stainless steel AISI 316L. Pre-filter basket in stainless steel too. Motors with IP-55 protection, at 2.850 r.p.m. Tension of mains feed at 230/400V-50Hz or 400/690V-50Hz (7,5, 10 and 12,5 HP) three-phase. Versions from 4HP to 12,5HP. Possibility of AISI 316L stainless steel impellers upon request.