MAXIM Hydraulic Power Unit (12V DC, Double Acting): 1.3 GPM Flow, 6 Qt. Steel Tank @2500 PSI #6 SAE Port Size and 3 way 4 position Solenoid Operated With HPU Dimensions: 22" L x 8.43" W x 10.3" H 2500 PSI 1.3 GPM #6 SAE Ports Tank: 6 Qt. Hydraulic Power Unit