Pressure Switches

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Find a pressure switch for your HVAC system, exhaust system, water pump, gas furnace and other types of equipment. Whether you're in the market for a differential switch, single switch or vacuum switch, a host of models are available that suit your desired pressure range and indoor/outdoor location.

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Differential Switches

Differential Switches

Single Switches

Single Switches

Vacuum Switches

Vacuum Switches

Differential Switches

Differential Switches

Single Switches

Single Switches

Vacuum Switches

Vacuum Switches

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Showing 321 to 340 of 907 products

Dwyer A3000-20CM Photohelic Pressure Switch/Gauge (0-20cm w.c.)-

Dwyer A3000-20CM Photohelic Pressure Switch/Gauge (0-20cm w.c.)
Model: A3000-20CM

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 1 to 2 Weeks

Qty:

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 1 to 2 Weeks
Quantity

Dwyer A3000-200CM Photohelic Pressure Switch/Gauge (0-200cm w.c.)-

Dwyer A3000-200CM Photohelic Pressure Switch/Gauge (0-200cm w.c.)
Model: A3000-200CM

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks
Quantity

Dwyer A3000-1KPA Photohelic Pressure Switch/Gauge (0-1 kPa)-

Dwyer A3000-1KPA Photohelic Pressure Switch/Gauge (0-1 kPa)
Model: A3000-1KPA

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 2 to 3 Weeks
Quantity

Dwyer A3000-15KPA Photohelic Pressure Switch/Gauge (0-15 kPa)-

Dwyer A3000-15KPA Photohelic Pressure Switch/Gauge (0-15 kPa)
Model: A3000-15KPA

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks
Quantity

Dwyer A3000-15CM Photohelic Pressure Switch/Gauge (0-15cm w.c.)-

Dwyer A3000-15CM Photohelic Pressure Switch/Gauge (0-15cm w.c.)
Model: A3000-15CM

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks
Quantity

Dwyer A3000-150CM Photohelic Pressure Switch/Gauge (0-150cm w.c.)-

Dwyer A3000-150CM Photohelic Pressure Switch/Gauge (0-150cm w.c.)
Model: A3000-150CM

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks
Quantity

Dwyer A3000-125PA Photohelic Pressure Switch/Gauge (0-125 Pa)-

Dwyer A3000-125PA Photohelic Pressure Switch/Gauge (0-125 Pa)
Model: A3000-125PA

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks
Quantity

Dwyer A3000-10MM Photohelic Pressure Switch/Gauge (0-10mm w.c.)-

Dwyer A3000-10MM Photohelic Pressure Switch/Gauge (0-10mm w.c.)
Model: A3000-10MM

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 13 to 14 Weeks

Qty:

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 13 to 14 Weeks
Quantity

Dwyer A3000-10KPA Photohelic Pressure Switch/Gauge (0-10 kPa)-

Dwyer A3000-10KPA Photohelic Pressure Switch/Gauge (0-10 kPa)
Model: A3000-10KPA

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks
Quantity

Dwyer A3000-100MM Photohelic Pressure Switch/Gauge (0-100mm w.c.)-

Dwyer A3000-100MM Photohelic Pressure Switch/Gauge (0-100mm w.c.)
Model: A3000-100MM

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 13 to 14 Weeks

Qty:

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 13 to 14 Weeks
Quantity

Dwyer A3000-100CM Photohelic Pressure Switch/Gauge (0-100cm w.c.)-

Dwyer A3000-100CM Photohelic Pressure Switch/Gauge (0-100cm w.c.)
Model: A3000-100CM

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks
Quantity

Dwyer A3000-1.5KPA-240VAC Photohelic Pressure Switch/Gauge (0-1.5 kPa), 220/240 VAC Relay Pack-

Dwyer A3000-1.5KPA-240VAC Photohelic Pressure Switch/Gauge (0-1.5 kPa), 220/240 VAC Relay Pack
Model: A3000-1.5KPA-240VAC

Sale Price $774.38 USD
Regular Price $846.32 USD
Availability 1 Week

Qty:

Sale Price $774.38 USD
Regular Price $846.32 USD
Availability 1 Week
Quantity

Dwyer A3000-1.5KPA Photohelic Pressure Switch/Gauge (0-1.5 kPa)-

Dwyer A3000-1.5KPA Photohelic Pressure Switch/Gauge (0-1.5 kPa)
Model: A3000-1.5KPA

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks
Quantity

Dwyer A3000-0AV Photohelic Pressure Switch/Gauge (0-0.5"w.c. & 500-2800 fpm)-

Dwyer A3000-0AV Photohelic Pressure Switch/Gauge (0-0.5"w.c. & 500-2800 fpm)
Model: A3000-0AV

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 4 to 5 Weeks
Quantity

Dwyer A3000-00N Photohelic Pressure Switch/Gauge (0.05-0-0.2"w.c.)-

Dwyer A3000-00N Photohelic Pressure Switch/Gauge (0.05-0-0.2"w.c.)
Model: A3000-00N

Sale Price $753.82 USD
Regular Price $823.85 USD
Availability 3 to 4 Weeks

Qty:

Sale Price $753.82 USD
Regular Price $823.85 USD
Availability 3 to 4 Weeks
Quantity

Dwyer A3000-00AV Photohelic Pressure Switch/Gauge (0-0.25"w.c. & 300-2000 fpm)-

Dwyer A3000-00AV Photohelic Pressure Switch/Gauge (0-0.25"w.c. & 300-2000 fpm)
Model: A3000-00AV

Sale Price $753.82 USD
Regular Price $823.85 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $753.82 USD
Regular Price $823.85 USD
Availability 4 to 5 Weeks
Quantity

Dwyer A3000-00 Photohelic Pressure Switch/Gauge (0-0.25"w.c.)-

Dwyer A3000-00 Photohelic Pressure Switch/Gauge (0-0.25"w.c.)
Model: A3000-00

Sale Price $753.82 USD
Regular Price $823.85 USD
Availability 3 Days

Qty:

Sale Price $753.82 USD
Regular Price $823.85 USD
Availability 3 Days
Quantity

Dwyer A3000-0 Photohelic Pressure Switch/Gauge (0-0.5"w.c.)-

Dwyer A3000-0 Photohelic Pressure Switch/Gauge (0-0.5"w.c.)
Model: A3000-0

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 1 to 2 Weeks

Qty:

Sale Price $713.88 USD
Regular Price $780.20 USD
Availability 1 to 2 Weeks
Quantity

Dwyer A3000 Series Photohelic Pressure Switch/Gauges-

Dwyer A3000 Series Photohelic Pressure Switch/Gauges

The direct reading scales eliminate troublesome conversions. The scales are brushed aluminum, coated with epoxy and the graduations are on both sides of the indicating tube. Special integral flow guides stabilize the float throughout the range to keep it from hunting or wandering in the bore. The float is highly visible against a white background.

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Dwyer A3000 Photohelic Pressure Switch/Gauge, 0 to 1 inWC, low temperature -20°F-

Dwyer A3000 Photohelic Pressure Switch/Gauge, 0 to 1 inWC, low temperature -20°F
Model: A3001-LT

Sale Price $737.95 USD
Regular Price $806.50 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $737.95 USD
Regular Price $806.50 USD
Availability 4 to 5 Weeks
Quantity
Showing 321 to 340 of 907 products
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