Max. Capacity (gal.): 6, Max. PSI: 50, Discharge Port (in.): 3/4, Dimensions D x H (in.): 8 5/8 x 12 11/16 In-line designPump mounting bracket not included; pre-charged pressure not applicableSize (Dia. x H) 8 5/8in. x 12 11/16in.Drawdown, Gallons@PSI: 20/40 PSI--0.7@20/40 PSI 30/50 PSI: 0.6@30/50 PSI