Jabsco - Filterless Waste Pump - 50890-1000. Robust Single Diaphragm Design.. Features:. Flexible installation. No filter required. Compact and simple design. Dry running capability. Connections for 38mm (1 1/2") ports. Up to 19 lpm (5 US gpm) flow. Relevant Standards: ISO 8846 MARINE and USCG Regulations for Ignition. Protection ISO 8849 MARINE Bilge Pump Standard. Built to ISO 15083 Specification. Meets BSEN 50081 (Electro Magnetic Compatibility). WARNING: This product can expose you to chemicals including FORMALDEHYDE (GAS) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.