Vacuum Switch Range 3 to 8 in Hg Contact Form DPST-2NC Port Type 1/4-18 in FNPS NEMA Rating 1 Action Standard Differential 5 to 10 in Hg 9013GVG Series Ambient Temp Range -10 Degrees to 185 Degrees F Media Temp Range -14 Degrees to 250 Degrees F Features Mounting Bracket