The Rule 25DA 500 GPH non-automatic, fully submersible 12V DC bilge pump provides outstanding quality and value. The bilge pump is designed with a small hole underneath the strainer tab that acts as an air vent to prevent air-locking. Protected against rust and corrosion, the pump is constructed with a stainless steel shaft, nylon impeller, and marine-grade blocked wiring. It is economically priced and designed for small boats. Compact bilge pump features silent and vibration-less operation, efficient long life motor, and ignition protection. Will not burn out after running dry. NMMA, IMCI, CE certified. 3-1/2"H x 2-3/8"W x 2-3/8"D.• Model 25DA• Open Flow: 500 gph• Amp Draw: 1.6• Fuse: 2.5 amps• Discharge Opening: 3/4"• Wire Length: 29"• Maximum Temperature: 200°F• Typical Life: 1, 500 hours Rust and corrosion resistant Designed for use on small boats 500 gph open flow | 25DA 500 GPH Submersible Bilge Pump