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Pressure Switches

HVAC pressure switches are safety and control components used to verify proper airflow, draft, and system pressure before and during operation. NWF Supply offers a selection of OEM and OEM replacement pressure switches compatible with major HVAC manufacturers including Nordyne, Frigidaire, Lennox, Trane, and York.

These pressure switches are commonly used in gas furnaces, packaged units, and air handlers to monitor inducer operation, venting conditions, and system safety circuits. All replacement switches are matched to original equipment specifications for pressure rating, electrical configuration, hose connection size, and mounting style to ensure proper system operation and reliable safety performance.

Our inventory includes direct-replacement HVAC pressure switches designed for accurate sensing, consistent operation, and dependable performance in residential and light commercial HVAC applications.

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56W65- Lennox Armstrong Ducane Gas Furnace Pressure Switch
$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00

56W65- Lennox Armstrong Ducane Gas Furnace Pressure Switch

Lennox International, Inc. / Allied Air Enterprises LLC
Only 4 left!

56W65- Lennox Pressure Switch 0.6" WC, SPST, Pressure Switch

$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00
SWT2521 Trane OEM Furnace Pressure Switch .94" WC
$0.00 - $0.00
$0.00
$125.00
$125.00 - $125.00
$125.00

SWT2521 Trane OEM Furnace Pressure Switch .94" WC

Ingersoll-Rand PLC (Trane)
Only 2 left!

SWT2521 Trane Pressure Switch  .94"wc, 1/4 barb connection, SPST Pressure Switch

$0.00 - $0.00
$0.00
$125.00
$125.00 - $125.00
$125.00
632432R Frigidaire Gibson Gas Furnace Pressure Switch
$0.00 - $0.00
$0.00
$35.00
$35.00 - $35.00
$35.00

632432R Frigidaire Gibson Gas Furnace Pressure Switch

Nortek Global HVAC, LLC (Nordyne)
Only 1 left!

632432R Gas Furnace Pressure Switch for L1RA-072C-16B/072-VB(A) Residential Furnace

$0.00 - $0.00
$0.00
$35.00
$35.00 - $35.00
$35.00
$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00

1P100087-066 OEM Lennox Allied Replacement Low Pressure Switch 40psi

Lennox International, Inc. / Allied Air Enterprises LLC
Only 4 left!

 This is a brand-new Lennox/Allied OEM Low-Pressure Switch Part# 23W26. This Low-Pressure Switch 40psi. This is the OEM replacement for obsolete Pa...

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$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00

1P23W26 OEM Lennox Allied Replacement Low Pressure Switch 40psi

Lennox International, Inc. / Allied Air Enterprises LLC
Only 4 left!

 This is a brand-new Lennox/Allied OEM Low-Pressure Switch Part# 23W26. This Low-Pressure Switch 40psi. This is the OEM replacement for obsolete Pa...

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$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00

100087-06 OEM Lennox Allied Replacement Low Pressure Switch 40psi

Lennox International, Inc. / Allied Air Enterprises LLC
Only 4 left!

 This is a brand-new Lennox/Allied OEM Low-Pressure Switch Part# 23W26. This Low-Pressure Switch 40psi. This is the OEM replacement for obsolete Pa...

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$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00

R1000087-02 OEM Lennox Allied Replacement Low Pressure Switch 40psi

Lennox International, Inc. / Allied Air Enterprises LLC
Only 4 left!

 This is a brand-new Lennox/Allied OEM Low-Pressure Switch Part# 23W26. This Low-Pressure Switch 40psi. This is the OEM replacement for obsolete Pa...

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$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00

88M97 OEM Lennox Allied Replacement Low Pressure Switch 40psi

Lennox International, Inc. / Allied Air Enterprises LLC
Only 4 left!

 This is a brand-new Lennox/Allied OEM Low-Pressure Switch Part# 23W26. This Low-Pressure Switch 40psi. This is the OEM replacement for obsolete Pa...

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$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00

R100087-02 OEM Lennox Allied Replacement Low Pressure Switch 40psi

Lennox International, Inc. / Allied Air Enterprises LLC
Only 4 left!

 This is a brand-new Lennox/Allied OEM Low-Pressure Switch Part# 23W26. This Low-Pressure Switch 40psi. This is the OEM replacement for obsolete Pa...

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$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00

23W26 OEM Lennox Allied Replacement Low Pressure Switch 40psi

Lennox International, Inc. / Allied Air Enterprises LLC
Only 4 left!

This is a brand-new Lennox/Allied OEM Low-Pressure Switch Part# 23W26. This Low-Pressure Switch 40psi. This is used in several Lennox/Allied-brand ...

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$51.00 - $51.00
$51.00
$51.00 - $51.00
$51.00
$38.00 - $38.00
$38.00
$38.00 - $38.00
$38.00

MPH-7111 Ranco Mini Pressure Control

Ranco
Only 1 left!

This is a Brand New Ranco Mini Pressure Control

$38.00 - $38.00
$38.00
$38.00 - $38.00
$38.00
$70.00 - $70.00
$70.00
$70.00 - $70.00
$70.00

1751-005 - Robert Shaw Pressure Regulator

Robertshaw
Only 1 left!

The Robertshaw® 1751 Series Add-on Pressure Regulator Kits are available for use on the following factory model types: 7000, 7010, 7100, 7200 and 7...

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$70.00 - $70.00
$70.00
$70.00 - $70.00
$70.00
$56.00 - $56.00
$56.00
$56.00 - $56.00
$56.00

1751-003 - Robert Shaw Pressure Regulator Kit

Robertshaw
Only 1 left!

The Robertshaw® 1751 Series Add-on Pressure Regulator Kits are available for use on the following factory model types: 7000, 7010, 7100, 7200 and 7...

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$56.00 - $56.00
$56.00
$56.00 - $56.00
$56.00
$78.00 - $78.00
$78.00
$78.00 - $78.00
$78.00

14A45 Lennox Pressure Switch

Lennox International
75 in stock

Lennox PROs® UniControl Pressure Switch, 120 - 277 VAC, 5 A, NO SPST Switch, Snap Switching Action

$78.00 - $78.00
$78.00
$78.00 - $78.00
$78.00
$399.00 - $399.00
$399.00
$399.00 - $399.00
$399.00

L4079B1033 Honeywell Pressure Switch

Honeywell International Inc
2655 in stock

Honeywell Pressure Switch, NPT Connection, Manual Switching Action, Contact Configuration: SPST, 25 psi, 9.8/4.9 A Full Load, 58.8 A at 120 VAC, 29...

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$399.00 - $399.00
$399.00
$399.00 - $399.00
$399.00
$319.00 - $319.00
$319.00
$319.00 - $319.00
$319.00

C6097B3002 Honeywell Gas Pressure Switch

Honeywell International Inc
151 in stock

Honeywell Gas Pressure Switch, C6097 Series, 24 - 240 V, 5 A, 1 to 60 in-WC, 8.5 psi With Venting Line, 7 psi Without Venting Line Maximum Pressure...

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$319.00 - $319.00
$319.00
$319.00 - $319.00
$319.00
$799.00 - $799.00
$799.00
$799.00 - $799.00
$799.00

L91B1050 Honeywell Pressure Controller

Honeywell International Inc
320 in stock

Honeywell Pressure Controller, L91B Series, 24 VAC, NPT Connection, Modulating Switching Action, 225 psi, Surface Mounting, Brass Diaphragm, Screw ...

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$799.00 - $799.00
$799.00
$799.00 - $799.00
$799.00
$303.00 - $303.00
$303.00
$303.00 - $303.00
$303.00

C6097A3004 Honeywell Pressure Switch

Honeywell International Inc
296 in stock

Honeywell Pressure Switch, 1 to 500 mbar, 1/4 x 1/8 in Connection, NPT Connection, Additional Information: 24 - 250 VAC, 0.05 to 5 A Silver Contact

$303.00 - $303.00
$303.00
$303.00 - $303.00
$303.00
$128.00 - $128.00
$128.00
$128.00 - $128.00
$128.00

8101111202 Antunes Gas Pressure Switch

Antunes
62 in stock

Antunes Gas Pressure Switch, Model: HGP-G, 10 A, 125/250 VAC, 2 to 20 in-WC, 1/3 hp, -40 to 170 deg F

$128.00 - $128.00
$128.00
$128.00 - $128.00
$128.00
$314.00 - $314.00
$314.00
$314.00 - $314.00
$314.00

C6097A3012 Honeywell Gas Pressure Switch

Honeywell International Inc
1251 in stock

Honeywell Gas Pressure Switch, C6097 Series, 24 - 240 V, 5 A, 1 to 20 in-WC, 8.5 psi With Venting Line, 7 psi Without Venting Line Maximum Pressure...

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$314.00 - $314.00
$314.00
$314.00 - $314.00
$314.00
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00

C6097A3053 Honeywell Gas Pressure Switch

Honeywell International Inc
282 in stock

Honeywell Gas Pressure Switch, C6097 Series, 24 - 240 V, 5 A, 1 to 20 in-WC, 8.5 psi With Venting Line, 7 psi Without Venting Line Maximum Pressure...

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$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
$181.00 - $181.00
$181.00
$181.00 - $181.00
$181.00

CNT3520 Trane Vent Pressure Switch

Trane International Inc
67 in stock

TRANE® Vent Pressure Switch, Contact Configuration: SPDT, -0.15 in-WC

$181.00 - $181.00
$181.00
$181.00 - $181.00
$181.00
$128.00 - $128.00
$128.00
$128.00 - $128.00
$128.00

8103116202 Antunes Gas Pressure Switch

Antunes
80 in stock

Antunes Gas Pressure Switch, Model: LGP-G, 10 A, 125/250 VAC, 1 to 20 in-WC, 1/3 hp, -40 to 170 deg F

$128.00 - $128.00
$128.00
$128.00 - $128.00
$128.00
$123.00 - $123.00
$123.00
$123.00 - $123.00
$123.00

HK06WC090 Carrier Air Pressure Switch

Carrier
225 in stock

Carrier® Air Pressure Switch, Male Spade Terminal Connection, Contact Configuration: NO, 0.13 to 0.33 in-WC, Additional Information: For Use With 3...

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$123.00 - $123.00
$123.00
$123.00 - $123.00
$123.00