500 GPH 12 Volt Non-Automatic Bilge Pump | Rule 25DA Rule 500 GPH 12 Volt Non-Automatic Bilge Pump Rule Non-Automatic Bilge Pump 500 GPH Flow Rate 12 Volt DC Operation Amp Draw: 1.6 amp Recommended Fuse: 4 amp Discharge: 3/4 inch barbed port Includes Check valve 3.9 inches High x 2.5 inches Wide (at base) 3 year limited warranty Replaces Rule 25 and Rule 25D