HIGH PERFORMANCE, SUPER QUIET OPERATION 12V DC, 5GPM/15LPM Max, 45PSI, 13A Max amps It is a self priming diaphragm pump for use up to 10 ft (vertical). CE certified with over-pressure and thermally protection makes this pump 100% safe. Also it is made premium material, with an engineering plastic shell with stainless steel sealing ring and sealed drive bearing ensures its life long durability. It adopted a double ball bearing & sealed pure copper motor, pressure adjustable guaranteeing a high flow, and quiet and smooth operation. NEW DEMAND Switch Control the pressure more precisely for reliable performance. Built-in adjustable pressure switch that turns on/off at 45 PSI, adjustable from 15PSI-45PSI （Warning: Do not Adjust too much each time.） Inlet Strainer Filters The filter can be removed for cleaning. Tip: The diaphragm pump is designed to pump clean water. If the liquid contains impurities, please install a filter(included) at the inlet. Accessories Inlet：1/2" - 14 MNPT hose barb with filter, 3/4" hose brass adapter Outlet：1/2" - 14 MNPT hose barb, 3/4" hose brass adapter External threads provide a variety of sizes and installation methods. Easily adapted to connect to any outlet. Why Choosing Our Water Diaphragm Pump? Engineering plastic shell with stainless steel sealing ringJapan-Imported Sealed drive bearing, durableDouble ball bearing, high efficiencySealed pure copper motor, low consumption, quiet operationOver-pressure and overheat protectionQuiet Operation: 55-60dB TECHNICAL SPECIFICATION (ATTENTION!!) Voltage: 12V DC (110V ac not available)Inlet / Outlet: 1/2″-14 MNPT *2 , 3/4" hose brass adapter *2Flow Rate: 5 GPM Cut-in Pressure: 15PSI, Shut-off Pressure: 45PSI/3.1Bar Outer Dimension: 9.25Inch * 5.2Inch(L*W) Thickness of 4.9Inch, see details in the pics in the product description Note: If the pump temperature rises excessively, the automatic protection function will activate, resulting in a shutdown. Please allow the pump to cool down before restarting it.