Air Pressure Switch, Momentary, Single Pole, 110/145 psi, 12 V Only, 30 amps, Steel, Silver/Black, 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-90227 Please hover mouse to enlarge image VIAIR Air Pressure Switch 90227 Amperage Rating 30 amps Circuit Activation Momentary Labeled No Lighted No Notes 110/145 psi. 1/4 in. NPT male port fitting threads. Sealed for weather resistance. For use on 12 V systems only. 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