3 GPM Co-molded diaphragm technology for long life and durabilityEfficient and quiet operation Integrated, sealed pressure switch for on-demand operationSelf-priming allows for installation versatilityRuns dry without damageSelfâprimingQuick connect ports for ease of installation, servicing, and maintenanceVibration dampening mounting feet Equipped with integrated bypass module to reduce cycling and provide smoother flowJabscoâs updated and improved lineup of freshwater supply pumps are designed to provide years of satisfactory service in applications both large and small.The 3 GPM models provide good performance in an economical footprint. These configurations provides 3 GPM, perfect for vessels with 1-3 outlets. A plastic housing protects the motors on these units from corrosion.