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 wiringWARNING: 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.