MinipowerPack standard "UPW-STD" PT ports by 1 / 4 "G - 12V DC Motor - 1800W with relè and thermal protection - Pump 1P2, 6 - check valve - Adjustable pressure relief valve - Pressure gauge switch fitting 1 / 8" G - 5 liter metal tank. Painted (D = 200) - Horizontal "OR" - Central support - cap motor protection.