Maximum working pressure 450 PSI. Pump down capacities listed below are 90% @ 90° F. Additional horizontal, vertical, and rotolock models available upon request. R134A Capacity: 17.6; R22 Capacity: 17.3; R404A/R507 Capacity: 15; Diameter: 6"; Height: 18"; Conn. Size: 3/4" SAE x 1/2" SAE; Wt. lbs.: 16.