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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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SWT02521 Trane OEM Furnace Pressure Switch .94" WC
$0.00 - $0.00
$0.00
$125.00
$125.00 - $125.00
$125.00

SWT02521 Trane OEM Furnace Pressure Switch .94" WC

Ingersoll-Rand PLC (Trane)
Only 2 left!

SWT02521 Trane Pressure Switch (New Part # SWT2521) .94"wc, 1/4 barb connection, SPST Pressure Switch

$0.00 - $0.00
$0.00
$125.00
$125.00 - $125.00
$125.00
Trane American Standard Honeywell Gas Furnace Pressure Switch SWT02293 Sold out
$126.00 - $126.00
$126.00
$126.00 - $126.00
$126.00

Trane American Standard Honeywell Gas Furnace Pressure Switch SWT02293

Ingersoll-Rand PLC (Trane)
Out of stock

This is a brand new OEM Trane pressure switch part# SWT2293/SWT02293.  This is the OEM replacement for part's C341750P01 & IS20137-3311

$126.00 - $126.00
$126.00
$126.00 - $126.00
$126.00
Sold out
R100684-02 - Lennox Armstrong Ducane Gas Furnace Pressure Switch
$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00

R100684-02 - Lennox Armstrong Ducane Gas Furnace Pressure Switch

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

R100684-02- Lennox Pressure Switch 0.6" WC, SPST, Pressure Switch

$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00
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
1734D5 Honeywell Gas Furnace Pressure Switch
Sold out
$109.00 - $109.00
$109.00
$109.00 - $109.00
$109.00

1734D5 Trane American Standard OEM Replacement Gas Furnace Pressure Switch

Ingersoll-Rand PLC (Trane)
Out of stock

  This is a brand new OEM Trane pressure switch part# SWT03221.  This is the replacement for part# 1734D5 1.4" wc, 1/4" barb connection, SPST Press...

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$109.00 - $109.00
$109.00
$109.00 - $109.00
$109.00
Sold out
SWT03221 Trane OEM Gas Furnace Pressure Switch
Sold out
$109.00 - $109.00
$109.00
$109.00 - $109.00
$109.00

SWT03221 Trane American Standard OEM Replacement Gas Furnace Pressure Switch

Ingersoll-Rand PLC (Trane)
Out of stock

  SWT03221 Trane OEM Gas Furnace Pressure Switch 1.4" wc, 1/4" barb connection, SPST Pressure switch

$109.00 - $109.00
$109.00
$109.00 - $109.00
$109.00
Sold out
$0.00 - $0.00
$0.00
$32.00
$32.00 - $32.00
$32.00

632473 Nortek Nordyne Intertherm OEM High Pressure Switch

Nortek Global HVAC (Nordyne)
Only 2 left!

This is a brand new OEM Nortek High-Pressure Switch, part# 632473R HI AUTO RESET PRESSURE SWITCH.

$0.00 - $0.00
$0.00
$32.00
$32.00 - $32.00
$32.00
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...

View full details
$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...

View full details
$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...

View full details
$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
Sold out
$70.00 - $70.00
$70.00
$70.00 - $70.00
$70.00

1751-005 - Robert Shaw Pressure Regulator

Robertshaw
Out of stock

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
Sold out
Sold out
$56.00 - $56.00
$56.00
$56.00 - $56.00
$56.00

1751-003 - Robert Shaw Pressure Regulator Kit

Robertshaw
Out of stock

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
Sold out
Sold out
$78.00 - $78.00
$78.00
$78.00 - $78.00
$78.00

2374-499 - Robert Shaw Pressure Switch

Robertshaw
Out of stock

The Robertshaw® 2374 Series Adjustable Air Sensing Switches are designed to replace a wide variety of air sensing switches found in residential and...

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$78.00 - $78.00
$78.00
$78.00 - $78.00
$78.00
Sold out
Sold out
$42.38 - $42.38
$42.38
$42.38 - $42.38
$42.38

2374-498 - Robert Shaw Pressure Switch

Robertshaw
Out of stock

The Robertshaw® 2374 Series Adjustable Air Sensing Switches are designed to replace a wide variety of air sensing switches found in residential and...

View full details
$42.38 - $42.38
$42.38
$42.38 - $42.38
$42.38
Sold out
Sold out
$42.38 - $42.38
$42.38
$42.38 - $42.38
$42.38

2374-495 - Robert Shaw Pressure Switch

Robertshaw
Out of stock

The Robertshaw® 2374 Series Adjustable Air Sensing Switches are designed to replace a wide variety of air sensing switches found in residential and...

View full details
$42.38 - $42.38
$42.38
$42.38 - $42.38
$42.38
Sold out
Sold out
$21.00 - $21.00
$21.00
$21.00 - $21.00
$21.00

RHM-350 - Robert Shaw Pressure Switch

Robertshaw
Out of stock

Ranco® Pressure switches are designed to sense and act upon reaching a pre-set pressure threshold. Various pressure switch models are available fo...

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$21.00 - $21.00
$21.00
$21.00 - $21.00
$21.00
Sold out
Sold out
$14.00 - $14.00
$14.00
$14.00 - $14.00
$14.00

RHS-450250 - Robert Shaw Pressure Switch

Robertshaw
Out of stock

Ranco® Pressure switches are designed to sense and act upon reaching a pre-set pressure threshold. Various pressure switch models are available fo...

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$14.00 - $14.00
$14.00
$14.00 - $14.00
$14.00
Sold out