This is a sealed pressure switch with 1/8" male NPT Threads on the end. - 30 AMP Sealed Pressure switch. This pressure switch is sold each. Must use a 40amp or 80amp relay with this pressure switch .
Viair 90212 Sealed Pressure Switch 85 PSI ON 105 PSI OFF 12V Air Compressors
Viair 90219 Sealed Pressure Switch 140 PSI ON 175 PSI OFF Air Compressors
85 PSI ON 105 PSI OFF Sealed Pressure Switch 12V DC For Viair Air Compressors
Viair Sealed Pressure Switch 165 PSI on 200 Off On Board Air, Train Horn
For Viair Air Compressors Sealed Pressure Switch 70 PSI ON 100 PSI OFF G1/4
90 PSI ON 120 PSI OFF Sealed Pressure Switch 30AMP Max. For 12V Air Compressors