Jabsco Par-Max HD4 Heavy Duty Water Pressure Pump - 12V - 4 GPM - 60 PSIMeet the Jabsco Par Max HD4 Heavy Duty Water Pressure Pump a rugged 12V DC pump designed to deliver up to 4 GPM at 60 PSI for marine, RV, and offgrid water systems. Built for durability and quiet, efficient operation, it keeps water flowing when you need it most. 12V DC Operation: 12V direct current power enables versatile installation on boats, RVs, and offgrid setups. High Flow & Pressure: Delivers up to 4 GPM at up to 60 PSI (4. 1 bar); max inlet