Air Pressure Switch, Momentary, 20 Amp, 90/120 psi., 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-90100 Please hover mouse to enlarge image VIAIR Air Pressure Switch 90100 Amperage Rating 20 amps Circuit Activation Momentary Labeled No Lighted No Notes 90/120 psi. 1/8 in. NPT male port fitting threads. Pole Single Quantity Sold individually. Relay Included No Safety Cover No Switch Actuation Style Air pressure Switch Finish Black Switch Material Steel Terminal Type Spade Throw Single Weatherproof Sealed No Wiring Included No