Minipower Pack Standard "UPW-STD" connection PT 1 / 4 "G - 12V DC Motor - 1800W with relè and thermal protection - Pump 1P3, 1 - Retain valve - pressure relief valve adjustable - liability for pressure switch 1 / 8" G -- Steel Tank 30 lt. (Mounting brackets on the tank) - Horizontal OR - Motor protection.