The 4-30F2-SI is a 4-way momentary pneumatic AirVal foot switch from the Clipper series, designed for medium-duty, general-purpose applications. It features a rugged cast iron housing with an internal valve constructed from a non-ferrous body, stainless steel plunger, and Teflon-coated buna-N O-rings for long operational life. The switch operates with a line pressure of up to 150 PSI, delivering an air flow of 30 C.F.M. and an exhaust rate of 25 C.F.M. at 100 PSI with an operating force of 19 pounds. Equipped with standard 1/8-27 N.P.T. ports and a nonskid base pad, it is designed for reliable and stable use in various industrial equipment setups.