Check the listing for details. ROLAIR PS2020M PRESSURE SWITCH W/ ON-OFF LEVER 105-135 PSI NEW OEM PART. Condition: New, Made in United States. Listed at 67.99 USD. The Rolair PS2020M Pressure Switch with On-Off Lever is a new OEM part designed for use in various hydraulics and pneumatic systems. This pressure switch, made by the reputable brand Rolair, features a range of 105-135 PSI for precise control of fluid pressure. With its durable construction and reliable performance, this pressure switch is a valuable component for ensuring optimal function in industrial and commercial applications.The Rolair PS2020M Pressure Switch with On-Off Lever is a new OEM part designed for use in various hydraulics and pneumatic systems. This pressure switch, made by the reputable brand Rolair, features a range of 105-135 PSI for precise control of fluid pressure. With its durable construction and reliable performance, this pressure switch is a valuable component for ensuring optimal function in industrial and commercial applications.