Proline 73708 is a pneumatic dead weight tester designed for pressure calibration and testing. It is composed of a cylinder, a piston, and a mass set. It produces a precise pressure, quickly and precisely. It is made of durable stainless steel and anodized aluminum. Additionally, the mass set is made of SAE 1006 steel. It is an ideal device for use in calibration and testing laboratories, as well as production and industrial work.