Presair is a leading manufacturer of both adjustable vacuum switches and factory set pressure switches. Our Factory Set Vacuum Switch products are set at the factory to the specifications and parameters to fit our customers’ requirements. Factory set vacuum switches have a range of 0.25 inches of water to 65 Psi. Our field adjustable vacuum switches allow our customers the flexibility of easily setting the switch parameters in the field as driven by the needs of the project.

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Presair designs and manufactures air switches, pressure and vacuum switches. Our Tinytrol Switches are factory set pressure and vacuum switches. These reliable, compact switches have a pressure range of 6 inches of water to 65 psig. Presair switches are UL and CUL Recognized. All switches are made in the United States and our direct customer service would be happy to help you find the right Factory Set Vacuum Switch for your application.