We are supplying here the Double Acting Hand Pump that produces a pressure differential across the pump on both the in and out stroke of each drive rod. Dual action pumps use two separate pumping chambers per drive rod. On the forward stroke, it pushes fluid out of the first chamber, and draws fluid into the other. It is designed to create flow of hydraulic oil, usually for activation of a hydraulic cylinder. The offered hand pump is made for use in the various commercial and industrial applications. The Double Acting Hand Pump is made for efficient long term performance.