Quiet operation; 3/8-inch hose barb ports , 1., 1 gallons per minute (4., 0 liters per minute); SEAFLO Pressure Pump 51 New Series 12V 5.0 gpm 60 psi On-demand Water Pump SEAFLO 12V DC 1.2 GPM 35 PSI 21-Series Diaphragm Water Pressure Pump For Marine Boat RV Caravan High Pressure Water Pump The 21-Series Pumps are compact and designed for a wide range of applications including liquid transfer, spraying, circulation, filtration and dispensing. This... On-demand, automatic water pump for small boats, campers and vans , Built-in 70 PSI(4., 8 BAR) pressure switch for automatic stop/start SEAFLO 21 Series 12/24 Volt DC Diaphragm Pump Features & Benefits Compact design Heavy-duty demand switch Can run dry Quiet operation Industry standard mount pattern Typical Applications Marine/RV Water Treatment/Ro Beverage/Food Service Distillation Equipment Agricultural Spraying General Industrial Automotive PUMP Type:2 Chamber positive displacement diaphragm pump, self priming, capable of being run dry Max Recommended Temperature:110°F (43°C) Max., Priming Capabilities:4 feet (1., 2 m) suction lift Max Pressure:70PSI (4., 8bar) Inlet/Outlet Ports :3/8 hose barb Weight :1., 25 lbs (0., 57 kg) MOTOR Duty Cycle:Intermittent Leads:18 AWG, 13., 78 long with 2-Pin connector/Leads Voltage:24V