High flow deck wash kit-19L par-MAX 5.0Jabsco Par Max 5. 0 high flow saltwater deck washdown pump kit. Heavy duty, high capacity, 50 PSI, 5 GPM 19 Litres per minute flow. The Par Max 5. 0 is a four chamber automatic salt water pressure diaphragm pump with coated heavy duty motor and sealed 50 PSI pressure switch. The motor is spray resistant only NOT waterproof. The high pressure, high flow jet blasts mud and silt from anchors, chain and deck and fishing areas with ease. Up to 19 litres