Air Pressure Switch, Momentary, 30 Amp, 145 psi on/175 psi off, 1/8 in. NPT, Each. Please Click on the "Read More" link for additional details about this item. Thank you, Summit Racing Equipment. The World's Speed Shop Since 1968 Summit Racing Part Number : VAR-90219 Please hover mouse to enlarge image VIAIR Air Pressure Switch 90219 Amperage Rating 30 amps Circuit Activation Momentary Labeled No Lighted No Notes 145 psi on/175 psi off. 1/8 in. NPT male port fitting threads. Sealed for weather resistance. Pole Single Quantity Sold individually. Relay Included No Safety Cover No Switch Actuation Style Air pressure Switch Finish Silver/Black Switch Material Steel Terminal Type Wire leads Throw Single Weatherproof Sealed No Wiring Included Yes