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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 21 to 40 of 1016 products

Dwyer A6-451221 Pressure Switch, 8-13 ±2 (0.55-0.90 ±0.18), Brass-

Dwyer A6-451221 Pressure Switch, 8-13 ±2 (0.55-0.90 ±0.18), Brass
Model: A6-451221

Sale Price $27.96 USD
Regular Price $29.90 USD
Availability 4 Days

Qty:

Sale Price $27.96 USD
Regular Price $29.90 USD
Availability 4 Days
Quantity

Dwyer A6-651221 Pressure Switch, 25-50 ±5 (1.72-3.45 ±0.34), Brass-

Dwyer A6-651221 Pressure Switch, 25-50 ±5 (1.72-3.45 ±0.34), Brass
Model: A6-651221

Sale Price $27.96 USD
Regular Price $29.90 USD
Availability 3 to 4 Weeks

Qty:

Sale Price $27.96 USD
Regular Price $29.90 USD
Availability 3 to 4 Weeks
Quantity

Dwyer A6-751221 Pressure Switch, 51-90 ±7 (3.52-6.21 ±0.48), Brass-

Dwyer A6-751221 Pressure Switch, 51-90 ±7 (3.52-6.21 ±0.48), Brass
Model: A6-751221

Sale Price $27.96 USD
Regular Price $29.90 USD
Availability 1 Week

Qty:

Sale Price $27.96 USD
Regular Price $29.90 USD
Availability 1 Week
Quantity

Dwyer Mercoid A6-851221 Pressure Switch, 91-150 ±10 (6.27-10.34 ±0.69), Brass-

Dwyer Mercoid A6-851221 Pressure Switch, 91-150 ±10 (6.27-10.34 ±0.69), Brass
Model: A6-851221

Sale Price $27.96 USD
Regular Price $29.90 USD
Availability 1 to 2 Weeks

Qty:

Sale Price $27.96 USD
Regular Price $29.90 USD
Availability 1 to 2 Weeks
Quantity

Dwyer MDA-211 Pressure Switch, Min. 2.0 (4.98) Max. 15 (37.37)-

Dwyer MDA-211 Pressure Switch, Min. 2.0 (4.98) Max. 15 (37.37)
Model: MDA-211

Sale Price $30.15 USD
Regular Price $32.25 USD
Availability 2 Days

Qty:

Sale Price $30.15 USD
Regular Price $32.25 USD
Availability 2 Days
Quantity

Dwyer MDA Series Miniature Adjustable Pressure Switches-

Dwyer MDA Series Miniature Adjustable Pressure Switches

Features field adjustable set point and gold inlay contacts. Air or other compatible fluids can be used on the "high side". The lightweight and compact size make the MDA ideal for any application with space constraints. Applications include industrial, HVAC/R, pump and motor control, medical, automotive, pools and spas.

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Dwyer A6-153221 Pressure Switch, 0.5-1 ±0.3 (0.03-0.07 ±0.02), 304SS-

Dwyer A6-153221 Pressure Switch, 0.5-1 ±0.3 (0.03-0.07 ±0.02), 304SS
Model: A6-153221

Sale Price $30.62 USD
Regular Price $32.75 USD
Availability 1 Week

Qty:

Sale Price $30.62 USD
Regular Price $32.75 USD
Availability 1 Week
Quantity

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

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

Sale Price $30.62 USD
Regular Price $32.75 USD
Availability 5 Days

Qty:

Sale Price $30.62 USD
Regular Price $32.75 USD
Availability 5 Days
Quantity

Dwyer A6-353221 Pressure Switch, 3.1-7 ±1 -0.48 ±0.07), 304SS-

Dwyer A6-353221 Pressure Switch, 3.1-7 ±1 -0.48 ±0.07), 304SS
Model: A6-353221

Sale Price $30.62 USD
Regular Price $32.75 USD
Availability 1 Week

Qty:

Sale Price $30.62 USD
Regular Price $32.75 USD
Availability 1 Week
Quantity

Dwyer A6-453221 Pressure Switch, 8-13 ±2 (0.55-0.90 ±0.18), 304SS-

Dwyer A6-453221 Pressure Switch, 8-13 ±2 (0.55-0.90 ±0.18), 304SS
Model: A6-453221

Sale Price $30.62 USD
Regular Price $32.75 USD
Availability 1 to 2 Weeks

Qty:

Sale Price $30.62 USD
Regular Price $32.75 USD
Availability 1 to 2 Weeks
Quantity

Dwyer A6-553221 Pressure Switch, 14-24 ±3 (0.97-1.65 ±0.21), 304SS-

Dwyer A6-553221 Pressure Switch, 14-24 ±3 (0.97-1.65 ±0.21), 304SS
Model: A6-553221

Sale Price $30.62 USD
Regular Price $32.75 USD
Availability 1 Week

Qty:

Sale Price $30.62 USD
Regular Price $32.75 USD
Availability 1 Week
Quantity

Dwyer A6-653221 Pressure Switch, 25-50 ±5 (1.72-3.45 ±0.34), 304SS-

Dwyer A6-653221 Pressure Switch, 25-50 ±5 (1.72-3.45 ±0.34), 304SS
Model: A6-653221

Sale Price $30.62 USD
Regular Price $32.75 USD
Availability 1 Week

Qty:

Sale Price $30.62 USD
Regular Price $32.75 USD
Availability 1 Week
Quantity

Dwyer A6-753221 Pressure Switch, 51-90 ±7 (3.52-6.21 ±0.48), 304SS-

Dwyer A6-753221 Pressure Switch, 51-90 ±7 (3.52-6.21 ±0.48), 304SS
Model: A6-753221

Sale Price $30.62 USD
Regular Price $32.75 USD
Availability 1 to 2 Weeks

Qty:

Sale Price $30.62 USD
Regular Price $32.75 USD
Availability 1 to 2 Weeks
Quantity

Dwyer A6-853221 Pressure Switch, 91-150 ±10 (6.27-10.35 ±0.69), 304SS-

Dwyer A6-853221 Pressure Switch, 91-150 ±10 (6.27-10.35 ±0.69), 304SS
Model: A6-853221

Sale Price $30.62 USD
Regular Price $32.75 USD
Availability 1 to 2 Weeks

Qty:

Sale Price $30.62 USD
Regular Price $32.75 USD
Availability 1 to 2 Weeks
Quantity

Dwyer MDA-111 Pressure Switch, Min. 0.5 (1.25) Max. 2.0 (4.98)-

Dwyer MDA-111 Pressure Switch, Min. 0.5 (1.25) Max. 2.0 (4.98)
Model: MDA-111

Sale Price $31.18 USD
Regular Price $33.35 USD
Availability 1 Week

Qty:

Sale Price $31.18 USD
Regular Price $33.35 USD
Availability 1 Week
Quantity

Dwyer MDA-311 Pressure Switch, Min. 15 (37.37) Max. 60 (149.3)-

Dwyer MDA-311 Pressure Switch, Min. 15 (37.37) Max. 60 (149.3)
Model: MDA-311

Sale Price $31.18 USD
Regular Price $33.35 USD
Availability 1 to 2 Weeks

Qty:

Sale Price $31.18 USD
Regular Price $33.35 USD
Availability 1 to 2 Weeks
Quantity

Dwyer A9-1 Snap-Action Pressure Switch (2.9 to 8.7 psig)-

Dwyer A9-1 Snap-Action Pressure Switch (2.9 to 8.7 psig)
Model: A9-1

Sale Price $36.47 USD
Regular Price $39.00 USD
Availability 3 to 4 Weeks

Qty:

Sale Price $36.47 USD
Regular Price $39.00 USD
Availability 3 to 4 Weeks
Quantity

Dwyer A9-2 Snap-Action Pressure Switch (7.3 to 17.4 psig)-

Dwyer A9-2 Snap-Action Pressure Switch (7.3 to 17.4 psig)
Model: A9-2

Sale Price $36.47 USD
Regular Price $39.00 USD
Availability 5 to 6 Weeks

Qty:

Sale Price $36.47 USD
Regular Price $39.00 USD
Availability 5 to 6 Weeks
Quantity

Dwyer A9-3 Snap-Action Pressure Switch (14.5 to 36.3 psig)-

Dwyer A9-3 Snap-Action Pressure Switch (14.5 to 36.3 psig)
Model: A9-3

Sale Price $36.47 USD
Regular Price $39.00 USD
Availability 1 to 2 Weeks

Qty:

Sale Price $36.47 USD
Regular Price $39.00 USD
Availability 1 to 2 Weeks
Quantity

Dwyer A9-6 Snap-Action Pressure Switch (58 to 103.5 psig)-

Dwyer A9-6 Snap-Action Pressure Switch (58 to 103.5 psig)
Model: A9-6

Sale Price $36.47 USD
Regular Price $39.00 USD
Availability 1 to 2 Weeks

Qty:

Sale Price $36.47 USD
Regular Price $39.00 USD
Availability 1 to 2 Weeks
Quantity
Showing 21 to 40 of 1016 products
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