Self-priming centrifugal pump. Designed especially for filtration equipment pools and pool cleaners. Main PV 30% propylene. Basket Pre-Filter: Polypropylene. Shaft: Stainless steel AISI-416. Mechanical Seal: Nitrile. Impeller: Noryl 30% FV, ultrasonic welding. Motor: 3,000 rpm. Protection: IP-55. Thermal Protection: Included in single phase pumps. Suitable for seawater.