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

Single Switches

Vacuum Switches

Differential Switches

Single Switches

Vacuum Switches

Showing 21 to 40 of 905 products

Dwyer A6 Series Pressure Switches

Simple, setpoint field adjustment. Excellent setpoint integrity.

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Dwyer A6-253221 Pressure Switch, 1.1-3 ±0.5 psi (0.08-0.21 ±0.03 bar), 304SS
Model: A6-253221

Sale Price	$53.94 CAD
Regular Price	$58.00 CAD
Availability	3 in Stock

Qty:

Sale Price	$53.94 CAD
Regular Price	$58.00 CAD
Availability	3 in Stock
Quantity	Quantity

Dwyer 1823-1 Low Differential Pressure Switch, 0.3-1.0" w.c.
Model: 1823-1

Sale Price	$179.49 CAD
Regular Price	$193.00 CAD
Availability	2 in Stock

Qty:

Sale Price	$179.49 CAD
Regular Price	$193.00 CAD
Availability	2 in Stock
Quantity	Quantity

Dwyer 1823-5 Low Differential Pressure Switch, 1.5-5.0" w.c.
Model: 1823-5

Sale Price	$179.49 CAD
Regular Price	$193.00 CAD
Availability	2 in Stock

Qty:

Sale Price	$179.49 CAD
Regular Price	$193.00 CAD
Availability	2 in Stock
Quantity	Quantity

Dwyer 1823-00 Low Differential Pressure Switch, 0.07-0.22" w.c.
Model: 1823-00

Sale Price	$188.79 CAD
Regular Price	$203.00 CAD
Availability	1 in Stock

Qty:

Sale Price	$188.79 CAD
Regular Price	$203.00 CAD
Availability	1 in Stock
Quantity	Quantity

Dwyer 1950-0-2F Explosion-Proof Differential Pressure Switch (.15-.50" w.c)
Model: 1950-0-2F

Sale Price	$548.70 CAD
Regular Price	$590.00 CAD
Availability	1 in Stock

Qty:

Sale Price	$548.70 CAD
Regular Price	$590.00 CAD
Availability	1 in Stock
Quantity	Quantity

Dwyer 1950-10-2F Explosion-Proof Differential Pressure Switch, 3 to 11" w.c.
Model: 1950-10-2F

Sale Price	$548.70 CAD
Regular Price	$590.00 CAD
Availability	1 in Stock

Qty:

Sale Price	$548.70 CAD
Regular Price	$590.00 CAD
Availability	1 in Stock
Quantity	Quantity

Dwyer 3000MR/3000MRS Series Photohelic Switch/Gauges

Switch setting is easy to adjust with large external knobs on the gauge face. Gauge reading is unaffected by switch operation - will indicate accurately even if power is interrupted. Solid state design now results in greatly reduced size and weight. Units can be flush mounted in 4-13/16" (122 mm) hole or surface mounted with hardware supplied.

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Dwyer 3010MR Photohelic Differential Pressure Switch/Gauge (0-10"w.c.)
Model: 3010MR

Sale Price	$1045.32 CAD
Regular Price	$1124.00 CAD
Availability	1 in Stock

Qty:

Sale Price	$1045.32 CAD
Regular Price	$1124.00 CAD
Availability	1 in Stock
Quantity	Quantity

Dwyer A3010 Photohelic Pressure Switch/Gauge (0-10"w.c.)
Model: A3010

Sale Price	$1097.40 CAD
Regular Price	$1180.00 CAD
Availability	1 in Stock

Qty:

Sale Price	$1097.40 CAD
Regular Price	$1180.00 CAD
Availability	1 in Stock
Quantity	Quantity

Dwyer A3020 Photohelic Pressure Switch/Gauge (0-20"w.c.)
Model: A3020

Sale Price	$1097.40 CAD
Regular Price	$1180.00 CAD
Availability	1 in Stock

Qty:

Sale Price	$1097.40 CAD
Regular Price	$1180.00 CAD
Availability	1 in Stock
Quantity	Quantity

Dwyer ADPS-05-2-N Adjustable Differential Pressure Switch (.8 to 4" w.c.)
Model: ADPS-05-2-N

Sale Price	$44.64 CAD
Regular Price	$48.00 CAD
Availability	1 in Stock

Qty:

Sale Price	$44.64 CAD
Regular Price	$48.00 CAD
Availability	1 in Stock
Quantity	Quantity

Ashcroft B424B 30IWV/30IW B-Series Pressure Switch with NEMA 4X Enclosure, -30/30 inH2O
Model: B424B 30IWV/30IW | Order No: B424B30IWV/30IW

Sale Price	$337.77 CAD
Regular Price	$417.00 CAD
Availability	1 in Stock

Qty:

Sale Price	$337.77 CAD
Regular Price	$417.00 CAD
Availability	1 in Stock
Quantity	Quantity

Dwyer 1638-1 Large Diaphragm Pressure Switch (0.20-1.0"w.c.)
Model: 1638-1

Sale Price	$850.02 CAD
Regular Price	$914.00 CAD
Availability	8 to 9 Weeks

Qty:

Sale Price	$850.02 CAD
Regular Price	$914.00 CAD
Availability	8 to 9 Weeks
Quantity	Quantity

Dwyer 1823-10 Low Differential Pressure Switch, 2.0-10" w.c.
Model: 1823-10

Sale Price	$179.49 CAD
Regular Price	$193.00 CAD
Availability	1 Week

Qty:

Sale Price	$179.49 CAD
Regular Price	$193.00 CAD
Availability	1 Week
Quantity	Quantity

Dwyer 1900-5-MR Differential Pressure Switch 3.0-11.75"w.c.) with Manual reset
Model: 1900-5-MR

Sale Price	$200.88 CAD
Regular Price	$216.00 CAD
Availability	9 to 10 Weeks

Qty:

Sale Price	$200.88 CAD
Regular Price	$216.00 CAD
Availability	9 to 10 Weeks
Quantity	Quantity

Dwyer 1910-00 Differential Pressure Switch (0.07-0.15"w.c.)
Model: 1910-00

Sale Price	$133.92 CAD
Regular Price	$144.00 CAD
Availability	5 Days

Qty:

Sale Price	$133.92 CAD
Regular Price	$144.00 CAD
Availability	5 Days
Quantity	Quantity

Dwyer 1910-10 Differential Pressure Switch (3.0-11.75"w.c.)
Model: 1910-10

Sale Price	$126.48 CAD
Regular Price	$136.00 CAD
Availability	13 to 14 Weeks

Qty:

Sale Price	$126.48 CAD
Regular Price	$136.00 CAD
Availability	13 to 14 Weeks
Quantity	Quantity

Dwyer 1910-20 Differential Pressure Switch (4.0-20"w.c.)
Model: 1910-20

Sale Price	$126.48 CAD
Regular Price	$136.00 CAD
Availability	11 to 12 Weeks

Qty:

Sale Price	$126.48 CAD
Regular Price	$136.00 CAD
Availability	11 to 12 Weeks
Quantity	Quantity

Dwyer 1950P-2-2F Explosion-Proof Differential Pressure Switch (0.5-2.0 psid)
Model: 1950P-2-2F

Sale Price	$628.68 CAD
Regular Price	$676.00 CAD
Availability	1 to 2 Weeks

Qty:

Sale Price	$628.68 CAD
Regular Price	$676.00 CAD
Availability	1 to 2 Weeks
Quantity	Quantity

Showing 21 to 40 of 905 products

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Pressure Switches

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Dwyer A6 Series Pressure Switches

Dwyer A6-253221 Pressure Switch, 1.1-3 ±0.5 psi (0.08-0.21 ±0.03 bar), 304SS Model: A6-253221

Qty:

Dwyer 1823-1 Low Differential Pressure Switch, 0.3-1.0" w.c. Model: 1823-1

Qty:

Dwyer 1823-5 Low Differential Pressure Switch, 1.5-5.0" w.c. Model: 1823-5

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Dwyer 1823-00 Low Differential Pressure Switch, 0.07-0.22" w.c. Model: 1823-00

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Dwyer 1950-0-2F Explosion-Proof Differential Pressure Switch (.15-.50" w.c) Model: 1950-0-2F

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Dwyer 1950-10-2F Explosion-Proof Differential Pressure Switch, 3 to 11" w.c. Model: 1950-10-2F

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Dwyer 3000MR/3000MRS Series Photohelic Switch/Gauges

Dwyer 3010MR Photohelic Differential Pressure Switch/Gauge (0-10"w.c.) Model: 3010MR

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Dwyer A3010 Photohelic Pressure Switch/Gauge (0-10"w.c.) Model: A3010

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Dwyer A3020 Photohelic Pressure Switch/Gauge (0-20"w.c.) Model: A3020

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Dwyer ADPS-05-2-N Adjustable Differential Pressure Switch (.8 to 4" w.c.) Model: ADPS-05-2-N

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Ashcroft B424B 30IWV/30IW B-Series Pressure Switch with NEMA 4X Enclosure, -30/30 inH2O Model: B424B 30IWV/30IW | Order No: B424B30IWV/30IW

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Dwyer 1638-1 Large Diaphragm Pressure Switch (0.20-1.0"w.c.) Model: 1638-1

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Dwyer 1823-10 Low Differential Pressure Switch, 2.0-10" w.c. Model: 1823-10

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Dwyer 1900-5-MR Differential Pressure Switch 3.0-11.75"w.c.) with Manual reset Model: 1900-5-MR

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Dwyer 1910-00 Differential Pressure Switch (0.07-0.15"w.c.) Model: 1910-00

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Dwyer 1910-10 Differential Pressure Switch (3.0-11.75"w.c.) Model: 1910-10

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Dwyer 1910-20 Differential Pressure Switch (4.0-20"w.c.) Model: 1910-20

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Dwyer 1950P-2-2F Explosion-Proof Differential Pressure Switch (0.5-2.0 psid) Model: 1950P-2-2F

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Dwyer A6-253221 Pressure Switch, 1.1-3 ±0.5 psi (0.08-0.21 ±0.03 bar), 304SS
Model: A6-253221

Dwyer 1823-1 Low Differential Pressure Switch, 0.3-1.0" w.c.
Model: 1823-1

Dwyer 1823-5 Low Differential Pressure Switch, 1.5-5.0" w.c.
Model: 1823-5

Dwyer 1823-00 Low Differential Pressure Switch, 0.07-0.22" w.c.
Model: 1823-00

Dwyer 1950-0-2F Explosion-Proof Differential Pressure Switch (.15-.50" w.c)
Model: 1950-0-2F

Dwyer 1950-10-2F Explosion-Proof Differential Pressure Switch, 3 to 11" w.c.
Model: 1950-10-2F

Dwyer 3010MR Photohelic Differential Pressure Switch/Gauge (0-10"w.c.)
Model: 3010MR

Dwyer A3010 Photohelic Pressure Switch/Gauge (0-10"w.c.)
Model: A3010

Dwyer A3020 Photohelic Pressure Switch/Gauge (0-20"w.c.)
Model: A3020

Dwyer ADPS-05-2-N Adjustable Differential Pressure Switch (.8 to 4" w.c.)
Model: ADPS-05-2-N

Ashcroft B424B 30IWV/30IW B-Series Pressure Switch with NEMA 4X Enclosure, -30/30 inH2O
Model: B424B 30IWV/30IW | Order No: B424B30IWV/30IW

Dwyer 1638-1 Large Diaphragm Pressure Switch (0.20-1.0"w.c.)
Model: 1638-1

Dwyer 1823-10 Low Differential Pressure Switch, 2.0-10" w.c.
Model: 1823-10

Dwyer 1900-5-MR Differential Pressure Switch 3.0-11.75"w.c.) with Manual reset
Model: 1900-5-MR

Dwyer 1910-00 Differential Pressure Switch (0.07-0.15"w.c.)
Model: 1910-00

Dwyer 1910-10 Differential Pressure Switch (3.0-11.75"w.c.)
Model: 1910-10

Dwyer 1910-20 Differential Pressure Switch (4.0-20"w.c.)
Model: 1910-20

Dwyer 1950P-2-2F Explosion-Proof Differential Pressure Switch (0.5-2.0 psid)
Model: 1950P-2-2F