Parts & Accessories Spare parts For sale: Original JABSCO PAR-MAX HD4 water pump. Specifications: 12 Volts 60 PSI pressure 4 GPM flow (approximately 15 liters/minute) Automatic on/off based on water pressure Suitable for boats, caravans, trips, and 12-volt water systems. Condition: New in box, unused. Price: 650 SAR (negotiable)