Solar Centrifugal Pump with Pre-filter for Swimming Pools with Mono-Stage Permanent Magnet Motor - Monoblock - Direct Current Motor with external ventilation for 500W power - Nozzles, Suction 50mm x Pressure 50mm. Used for clean water. Maximum Flow: 14.4m³ / h - Minimum Flow: 0.2m³ / h; Maximum Pressure: 14.4mca - Minimum Pressure: 2.0mca. NOTE: - Direct connection to solar panels; - Integrated external controller. - Suggested 2 (two) solar panels with power of 330W each connected in series. - External electronic controller with MPPT function. - Maximum voltage of 100Vdc. - Included additional parts to assist in the installation. "