Jabsco - Single Stack Water System - 4.8 GPM - 40 PSI - 12V - 52520-1000. The Single Stack Water System is a fully assembled water pressure set which makes installation of water pressure systems simple. The system consists of a PAR-Max 4.0 Pump, strainer and pre-pressurized accumulator tank. Serves four or more outlets.. Features:. Self-priming up to 10' (3M). Run-dry ability. Smooth, even flow. Thermal overload protection. Complies with ISO 8846 MARINE (Ignition Protection). Three-year warranty. Specifications:. Flow: 4.8 GPM (18LPM). Shut-Off Pressure: 40PSI (2.8bar). Fitting: Connections for 3/4" (19mm) hose tail. Size: 12.2" Long x 9.4" Wide x 9.8" High. Weight: 12lbs (5.4kg). Specifications:. Gallons Per Minute: 4.8. PSI: 40. Volts: 12. Box Dimensions: 8"H x 10"W x 14"L WT: 12 lbs. UPC: 671880615914