The 41SH12 is an air-seal foot switch that combines a foot-operated air bulb mounted in a steel compact housing with a remotely located air-operated electric snap switch, providing electrical isolation from the floor and environmental protection. The switch features SPDT (Form C) contact configuration available in momentary or maintained versions, with a 10-foot 1/8" ID PVC tubing connecting the foot pedal to the remote air switch equipped with a 9/16" UNF bulkhead mount. It is rated for 20 A at 125–250 VAC, 1 H.P. at 125 VAC, and 2 H.P. at 250 VAC, with an operating temperature range of 10 to 120 °F and dimensions of 2 7/8 x 4 1/2 x 1 1/8 inches. The air-seal design offers long trouble-free life, superior pull-out protection via molded strain relief grommet, and application versatility for industrial control and safety systems.