Viair 145-175 PSI Pressure Switch with Leads

Max Load of 30 Amps & 1/8" NPT


2 reviews

The Viair 145-175 PSI Pressure Switch with Leads is a durable pressure switch that features insulated leads for improved longevity. An integral part of any onboard air system, the Viair 145-175 PSI Pressure Switch with Leads will automatically turn your compressor on when the air pressure in your tank drops below 145 PSI and will turn your compressor off when air pressure reaches 175 PSI. Viair pressure switches are rated for 10,000 cycles and are known for their dependability. Can be used for either 12-volt or 24-volt operation.

We recommend purchasing a relay with the Viair 145-175 PSI Pressure Switch with Leads when using it with an air compressor. By installing a relay you can alleviate the burden of the compressor from the pressure switch, ensuring an even longer lifespan!

  • High Accuracy
  • Perfect For 12 or 24 Volt Applications
  • Pre Wired for Easy Installation
  • Viair 145-175 PSI Pressure Switch 
  • Part Number: PS-175S
  • Ports: 1x ⅛″ NPT male
  • Turn-Off Pressure: 175 PSI
  • Restart Pressure: 145 PSI
  • Voltage: 12 or 24 Volts DC
  • Max Amps: 20 or 30 Amps
  • Money-Back Guarantee/Refund Policy
    All merchandise unless otherwise indicated may be returned within 30 days from the shipment arrival date for a refund. A Returned Merchandise Authorization (RMA) number is required for all returns. A 15% restocking fee may apply. Additional deductions may be made to reflect the products current market value. These terms apply to all refunds. Most products are shipped with a refund/replacement guarantee period unless otherwise noted in the product listing. Customers must inform of any order discrepancy within 7 days from the invoice date so that we may investigate and resolve the situation accordingly.
  • Warranty
    This product is backed by Viair's One-Year Manufacturer's Defect Warranty!
  • Satisfaction Guarantee offers our customers a 30-day satisfaction replacement or refund guarantee on all purchases, except when otherwise noted in the product listing.
  • Cross-Shipments will not cross-ship returned merchandise.
  • Physical Damage Policy
    Physical damage to any product purchased at will effectively void warranty coverage. Physical damage includes but is not limited to improper handling and/or any other type of damage sustained by irregular usage.

Warnings & Notices

Safety warning icon

This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to

Customer Reviews

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Pressure switch

Wanted more pressure in my tank and this works perfectly



Part was as described. Easy install.