Mini power packs "UPW-STD", attacks P-T by 1/4 "G - 12V DC Motor - 1800W with relay and thermal protection - Pump 1P2,5 cc - Check valve - Maximus pressure valve (to set up) - Predisposition for pressure switch connection by 1/8" G - Offset Plastic tank 5 lt. Neutral color - Horizontal mounting "OR".