Special minipower packs "UPW-SPC" port by PT 1 / 4 "G - Motor 12V DC - 800W with relè and thermal protection - Pump 1P1, 0cc - check valve - Adjustable pressure relief valve - 1 liter steel tank. Painted - Assembly horizontal "OR" - N ° 1 ACCUMULARORE - 1 ADJUSTABLE PRESSURE DUAL THRESHOLD - Solenoid Cartridge valve NA (Normally Open) of formal discharge