Udor BETA-150/CC Diaphragm PumpFrom Udor, this Beta 150 CC diaphragm pump can handle up to 42 GPM and 700 PSI. It also is made of durable materials, which include brass and stainless steel. Heads, manifolds, connecting rods and mounting rails are all made to last and stand up to even the heaviest use. The unit also features a dual 1 3 8" six spline male PTO shaft. This is a four diaphragm pump that has a control unit with an adjustable pressure regulator and pulsation dampener.