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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 281 to 300 of 908 products

Ashcroft LPSN4HB25 30IMV/15# LP-Series Pressure Switch with NEMA 4X Enclosure, Fixed Deadband, -30 inHg/15 psi-

Ashcroft LPSN4HB25 30IMV/15# LP-Series Pressure Switch with NEMA 4X Enclosure, Fixed Deadband, -30 inHg/15 psi
Model: LPSN4HB25 30IMV/15# | Order No: LPSN4HB2530IMV/15#

Sale Price $333.84 USD
Regular Price $373.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $333.84 USD
Regular Price $373.00 USD
Availability 2 to 3 Weeks
Quantity

Dwyer A1F Series OEM Pressure Switch, 2 to 15 psig-

Dwyer A1F Series OEM Pressure Switch, 2 to 15 psig
Model: A1F-PC-SS-1-1

Sale Price $344.27 USD
Regular Price $376.25 USD
Availability 1 to 2 Weeks

Qty:

Sale Price $344.27 USD
Regular Price $376.25 USD
Availability 1 to 2 Weeks
Quantity

Dwyer A1F Series OEM Pressure Switch, 4 to 75 psig-

Dwyer A1F Series OEM Pressure Switch, 4 to 75 psig
Model: A1F-PC-SS-1-2

Sale Price $344.27 USD
Regular Price $376.25 USD
Availability 5 to 6 Weeks

Qty:

Sale Price $344.27 USD
Regular Price $376.25 USD
Availability 5 to 6 Weeks
Quantity

Dwyer A1F Series OEM Pressure Switch, 8 to 225 psig-

Dwyer A1F Series OEM Pressure Switch, 8 to 225 psig
Model: A1F-PC-SS-1-3

Sale Price $344.27 USD
Regular Price $376.25 USD
Availability 1 Week

Qty:

Sale Price $344.27 USD
Regular Price $376.25 USD
Availability 1 Week
Quantity

Dwyer 1950 Series Explosion-proof Differential Pressure Switches-

Dwyer 1950 Series Explosion-proof Differential Pressure Switches

CE, UL and CSA listed, FM approved for use in Class I, Div 1, Groups C and D, Class II Groups E, F, and G and Class III hazardous atmospheres NEMA 7 & 9. Raintight NEMA 3 (IP54). Weatherproof features include a drain plug and O-ring seal in cover. Series offers set points from 0.03 to 20" w.c. (7.5 to 5 kPa) and from 0.5 to 60 psi (0.035 to 3.5 bar).

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

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

Sale Price $356.58 USD
Regular Price $389.70 USD
Availability 1 in Stock

Qty:

Sale Price $356.58 USD
Regular Price $389.70 USD
Availability 1 in Stock
Quantity

Dwyer 1950-20-2F Explosion-Proof Differential Pressure Switch (4.0-20" w.c.)-

Dwyer 1950-20-2F Explosion-Proof Differential Pressure Switch (4.0-20" w.c.)
Model: 1950-20-2F

Sale Price $356.58 USD
Regular Price $389.70 USD
Availability 1 in Stock

Qty:

Sale Price $356.58 USD
Regular Price $389.70 USD
Availability 1 in Stock
Quantity

Dwyer 1950-5-2F Explosion-Proof Differential Pressure Switch (1.4-5.5" w.c.)-

Dwyer 1950-5-2F Explosion-Proof Differential Pressure Switch (1.4-5.5" w.c.)
Model: 1950-5-2f

Sale Price $356.58 USD
Regular Price $389.70 USD
Availability 1 Week

Qty:

Sale Price $356.58 USD
Regular Price $389.70 USD
Availability 1 Week
Quantity

Dwyer 1950-00-2F Explosion-Proof Differential Pressure Switch, 0.07 to 0.15" w.c.-

Dwyer 1950-00-2F Explosion-Proof Differential Pressure Switch, 0.07 to 0.15" w.c.
Model: 1950-00-2F

Sale Price $356.58 USD
Regular Price $389.70 USD
Availability 15+ Weeks

Qty:

Sale Price $356.58 USD
Regular Price $389.70 USD
Availability 15+ Weeks
Quantity

Dwyer 1950-1-2F Explosion-Proof Differential Pressure Switch, 0.4 to 1.6" w.c.-

Dwyer 1950-1-2F Explosion-Proof Differential Pressure Switch, 0.4 to 1.6" w.c.
Model: 1950-1-2F

Sale Price $356.58 USD
Regular Price $389.70 USD
Availability 1 Week

Qty:

Sale Price $356.58 USD
Regular Price $389.70 USD
Availability 1 Week
Quantity

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

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

Sale Price $356.58 USD
Regular Price $389.70 USD
Availability 2 in Stock

Qty:

Sale Price $356.58 USD
Regular Price $389.70 USD
Availability 2 in Stock
Quantity

Ashcroft LPSN4HB25 30IW LP-Series Pressure Switch with NEMA 4X Enclosure, Fixed Deadband, 30 inH2O-

Ashcroft LPSN4HB25 30IW LP-Series Pressure Switch with NEMA 4X Enclosure, Fixed Deadband, 30 inH2O
Model: LPSN4HB25 30IW | Order No: LPSN4HB2530IW

Sale Price $349.05 USD
Regular Price $390.00 USD
Availability 3 to 4 Weeks

Qty:

Sale Price $349.05 USD
Regular Price $390.00 USD
Availability 3 to 4 Weeks
Quantity

Ashcroft LPSN4HB25 60IW LP-Series Pressure Switch with NEMA 4X Enclosure, Fixed Deadband, 60 inH2O-

Ashcroft LPSN4HB25 60IW LP-Series Pressure Switch with NEMA 4X Enclosure, Fixed Deadband, 60 inH2O
Model: LPSN4HB25 60IW | Order No: LPSN4HB2560IW

Sale Price $349.05 USD
Regular Price $390.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $349.05 USD
Regular Price $390.00 USD
Availability 2 to 3 Weeks
Quantity

Ashcroft LPSN4HB25 100IW LP-Series Pressure Switch with NEMA 4X Enclosure, Fixed Deadband, 100 inH2O-

Ashcroft LPSN4HB25 100IW LP-Series Pressure Switch with NEMA 4X Enclosure, Fixed Deadband, 100 inH2O
Model: LPSN4HB25 100IW | Order No: LPSN4HB25100IW

Sale Price $349.05 USD
Regular Price $390.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $349.05 USD
Regular Price $390.00 USD
Availability 2 to 3 Weeks
Quantity

Ashcroft LPSN4HB25 150IW LP-Series Pressure Switch with NEMA 4X Enclosure, Fixed Deadband, 150 inH2O-

Ashcroft LPSN4HB25 150IW LP-Series Pressure Switch with NEMA 4X Enclosure, Fixed Deadband, 150 inH2O
Model: LPSN4HB25 150IW | Order No: LPSN4HB25150IW

Sale Price $349.05 USD
Regular Price $390.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $349.05 USD
Regular Price $390.00 USD
Availability 2 to 3 Weeks
Quantity

Ashcroft LPAN4HB25 15# LP-Series Pressure Switch with NEMA 4X Enclosure, Adjustable Deadband, 15 psi-

Ashcroft LPAN4HB25 15# LP-Series Pressure Switch with NEMA 4X Enclosure, Adjustable Deadband, 15 psi
Model: LPAN4HB25 15# | Order No: LPAN4HB2515#

Sale Price $351.74 USD
Regular Price $393.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $351.74 USD
Regular Price $393.00 USD
Availability 2 to 3 Weeks
Quantity

Ashcroft LPAN4HB25 60# LP-Series Pressure Switch with NEMA 4X Enclosure, Adjustable Deadband, 60 psi-

Ashcroft LPAN4HB25 60# LP-Series Pressure Switch with NEMA 4X Enclosure, Adjustable Deadband, 60 psi
Model: LPAN4HB25 60# | Order No: LPAN4HB2560#

Sale Price $351.74 USD
Regular Price $393.00 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $351.74 USD
Regular Price $393.00 USD
Availability 4 to 5 Weeks
Quantity

Ashcroft LPAN4HB25 100# LP-Series Pressure Switch with NEMA 4X Enclosure, Adjustable Deadband, 100 psi-

Ashcroft LPAN4HB25 100# LP-Series Pressure Switch with NEMA 4X Enclosure, Adjustable Deadband, 100 psi
Model: LPAN4HB25 100# | Order No: LPAN4HB25100#

Sale Price $351.74 USD
Regular Price $393.00 USD
Availability 3 to 4 Weeks

Qty:

Sale Price $351.74 USD
Regular Price $393.00 USD
Availability 3 to 4 Weeks
Quantity

Ashcroft LPAN4HB25 400# LP-Series Pressure Switch with NEMA 4X Enclosure, Adjustable Deadband, 400 psi-

Ashcroft LPAN4HB25 400# LP-Series Pressure Switch with NEMA 4X Enclosure, Adjustable Deadband, 400 psi
Model: LPAN4HB25 400# | Order No: LPAN4HB25400#

Sale Price $351.74 USD
Regular Price $393.00 USD
Availability 3 to 4 Weeks

Qty:

Sale Price $351.74 USD
Regular Price $393.00 USD
Availability 3 to 4 Weeks
Quantity

Ashcroft LPAN4HB25 600# LP-Series Pressure Switch with NEMA 4X Enclosure, Adjustable Deadband, 600 psi-

Ashcroft LPAN4HB25 600# LP-Series Pressure Switch with NEMA 4X Enclosure, Adjustable Deadband, 600 psi
Model: LPAN4HB25 600# | Order No: LPAN4HB25600#

Sale Price $351.74 USD
Regular Price $393.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $351.74 USD
Regular Price $393.00 USD
Availability 2 to 3 Weeks
Quantity
Showing 281 to 300 of 908 products
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