Rule 3700Heavy duty construction for both commercial and pleasure boat use; known for trouble free operation and reliability. 1-1/2"" (38mm) discharge outlet. 12 Volts DC unless noted.Features:Fully SubmersibleEasy clean snap lock strainerSilent and vibrationless operationAnti-airlock protectionCompact efficient long life motorIgnition protectedNo burn-out when run dryRust and Corrosion protectionUsed by leading boatbuilders worldwidemarine grade blocked wiringProduct : RULE 3700 GPH GOLD SERIES NON AUTOMATIC BILGE PUMP Manufacturer : RULE Manufacturer Part No : 13A UPC : 042237085818