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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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Lennox Armstrong Ducane OEM Inducer Assembly R101523-01 with Pressure Switch Sold out
$0.00 - $0.00
$0.00
$229.00
$229.00 - $229.00
$229.00

Lennox Armstrong Ducane OEM Inducer Assembly R101523-01 with Pressure Switch

Lennox International, Inc. / Allied Air Enterprises LLC
Out of stock

This is a brand new Lennox OEM Inducer Assembly part# R06428D456 (also part# R101523-01).  This assembly comes with a new gasket already mounte...

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$0.00 - $0.00
$0.00
$229.00
$229.00 - $229.00
$229.00
Sold out
Lennox Armstrong Ducane OEM Inducer Assembly 101523-01 Includes Pressure Switch
$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00

Lennox Armstrong Ducane OEM Inducer Assembly 101523-01 Includes Pressure Switch

Lennox International, Inc. / Allied Air Enterprises LLC
Only 1 left!

This is a brand new Lennox OEM Inducer Assembly with Pressure Switch part# R06428D455.  This is also part# 702112106 & 101523-01

$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00
Lennox Armstrong Ducane OEM Inducer Assembly 702112106 Includes Pressure Switch
$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00

Lennox Armstrong Ducane OEM Inducer Assembly 702112106 Includes Pressure Switch

Lennox International, Inc. / Allied Air Enterprises LLC
Only 1 left!

This is a brand new Lennox OEM Inducer Assembly with Pressure Switch part# R06428D455.  This is also part# 702112106 & 101523-01

$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00
Lennox Armstrong Ducane OEM Inducer Assembly R06428D455 Includes Pressure Switch
$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00

Lennox Armstrong Ducane OEM Inducer Assembly R06428D455 Includes Pressure Switch

Lennox International, Inc. / Allied Air Enterprises LLC
Only 1 left!

This is a brand new Lennox OEM Inducer Assembly with Pressure Switch part# R06428D455.  This is also part# 702112106 & 101523-01

$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00
LE12L20 - Hi Pressure Switch
$0.00 - $0.00
$0.00
$34.00
$34.00 - $34.00
$34.00

LE12L20 OEM Allied Lennox Concord Armstrong Hi Pressure Switch

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

This is a brand-new OEM Lennox/Allied Air 590# N/C Hi-Pressure Switch part number 12L20. This is the OEM replacement for obsolete Part# LE12L20. Th...

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$0.00 - $0.00
$0.00
$34.00
$34.00 - $34.00
$34.00
12L2001 - Hi Pressure Switch
$0.00 - $0.00
$0.00
$34.00
$34.00 - $34.00
$34.00

12L2001 OEM Allied Lennox Concord Armstrong Hi Pressure Switch

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

This is a brand-new OEM Lennox/Allied Air 590# N/C Hi-Pressure Switch part number 12L20. This is the OEM replacement for obsolete Part# 12L2001. Th...

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$0.00 - $0.00
$0.00
$34.00
$34.00 - $34.00
$34.00
12L20 - Hi Pressure Switch
$0.00 - $0.00
$0.00
$34.00
$34.00 - $34.00
$34.00

12L20 OEM Allied Lennox Concord Armstrong Hi Pressure Switch

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

This is a brand-new OEM Lennox/Allied Air 590# N/C Hi-Pressure Switch part number 12L20. This 590# N/C Hi-Pressure Switch is used in several Lennox...

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$0.00 - $0.00
$0.00
$34.00
$34.00 - $34.00
$34.00
102998-09 Lennox Armstrong Ducane OEM Replacement Pressure Switch 1 Single Stage .90"
$68.00 - $68.00
$68.00
$68.00 - $68.00
$68.00

102998-09 Lennox Armstrong Ducane OEM Replacement Pressure Switch 1 Single Stage .90"

Lennox International, Inc.
Only 5 left!

This is a brand new Lennox pressure switch part# 10U94.  This pressure switch is the OEM replacement for part# 102998-09 .90"wc SPST Pressure Switch

$68.00 - $68.00
$68.00
$68.00 - $68.00
$68.00
80W67 Lennox Armstrong Ducane Pressure Switch 1 Single Stage .90"
$0.00 - $0.00
$0.00
$68.00
$68.00 - $68.00
$68.00

80W67 Lennox Armstrong Ducane Pressure Switch 1 Single Stage .90"

Lennox International, Inc.
Only 5 left!

This is a brand new Lennox pressure switch part# 10U94.  This pressure switch is the OEM replacement for part# 80W67 .90"wc SPST Pressure Switch

$0.00 - $0.00
$0.00
$68.00
$68.00 - $68.00
$68.00
93W94 Lennox Armstrong Ducane Pressure Switch 1 Single Stage .90"
$0.00 - $0.00
$0.00
$68.00
$68.00 - $68.00
$68.00

93W94 Lennox Armstrong Ducane Pressure Switch 1 Single Stage .90"

Lennox International, Inc.
Only 5 left!

This is a brand new Lennox pressure switch part# 10U94.  This pressure switch is the OEM replacement for part# 93W94 .90"wc SPST Pressure Switch

$0.00 - $0.00
$0.00
$68.00
$68.00 - $68.00
$68.00
77W44 Lennox Armstrong Ducane Pressure Switch 1 Single Stage .90"
$0.00 - $0.00
$0.00
$68.00
$68.00 - $68.00
$68.00

77W44 Lennox Armstrong Ducane Pressure Switch 1 Single Stage .90"

Lennox International, Inc.
Only 5 left!

This is a brand new Lennox pressure switch part# 10U94.  This pressure switch is the OEM replacement for part# 77W44 .90"wc SPST Pressure Switch

$0.00 - $0.00
$0.00
$68.00
$68.00 - $68.00
$68.00
11U72 Lennox Armstrong Ducane Pressure Switch 1 Single Stage .90"
$0.00 - $0.00
$0.00
$68.00
$68.00 - $68.00
$68.00

11U72 Lennox Armstrong Ducane Pressure Switch 1 Single Stage .90"

Lennox International, Inc.
Only 5 left!

This is a brand new Lennox pressure switch part# 10U94.  This pressure switch is the OEM replacement for part# 11U72  .90"wc SPST Pressure Switch

$0.00 - $0.00
$0.00
$68.00
$68.00 - $68.00
$68.00
R100684-09 - Lennox Armstrong Ducane Gas Furnace Pressure Switch
$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00

R100684-09 - Lennox Armstrong Ducane Gas Furnace Pressure Switch

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

R100684-09- Lennox Pressure Switch 0.6" WC, SPST, Pressure Switch

$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00
R45964-002 - Lennox Armstrong Ducane Gas Furnace Pressure Switch
$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00

R45964-002 - Lennox Armstrong Ducane Gas Furnace Pressure Switch

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

R45964-002- Lennox Pressure Switch 0.6" WC, SPST, Pressure Switch

$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00
20310902 - Lennox Armstrong Ducane Gas Furnace Pressure Switch
$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00

20310902 - Lennox Armstrong Ducane Gas Furnace Pressure Switch

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

20310902 - Lennox Pressure Switch 0.6" WC, SPST, Pressure Switch

$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00
R40405-005 - Lennox Armstrong Ducane Gas Furnace Pressure Switch
$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00

R40405-005 - Lennox Armstrong Ducane Gas Furnace Pressure Switch

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

R40405-005- Lennox Pressure Switch 0.6" WC, SPST, Pressure Switch

$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00
R43336-005- Lennox Armstrong Ducane Gas Furnace Pressure Switch
$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00

R43336-005- Lennox Armstrong Ducane Gas Furnace Pressure Switch

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

R43336-005- Lennox Pressure Switch 0.6" WC, SPST, Pressure Switch

$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00
R44819-005- Lennox Armstrong Ducane Gas Furnace Pressure Switch
$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00

R44819-005- Lennox Armstrong Ducane Gas Furnace Pressure Switch

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

R44819-005- Lennox Pressure Switch 0.6" WC, SPST, Pressure Switch

$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00
R44819-005- Lennox Armstrong Ducane Gas Furnace Pressure Switch
$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00

R44819-005- Lennox Armstrong Ducane Gas Furnace Pressure Switch

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

R45694-002- Lennox Pressure Switch 0.6" WC, SPST, Pressure Switch

$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00
R45694-002- Lennox Armstrong Ducane Gas Furnace Pressure Switch
$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00

R45694-002- Lennox Armstrong Ducane Gas Furnace Pressure Switch

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

R45694-002- Lennox Pressure Switch 0.6" WC, SPST, Pressure Switch

$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00
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
65W4901 Lennox Armstrong Ducane Gas Furnace Pressure Switch
$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00

65W4901 Lennox Armstrong Ducane Gas Furnace Pressure Switch

Lennox International, Inc.
Only 4 left!

65W4901 Lennox Pressure Switch 0.6" WC, SPST, Pressure Switch

$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00
65W49 Lennox Armstrong Ducane Gas Furnace Pressure Switch
$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00

65W49 Lennox Armstrong Ducane Gas Furnace Pressure Switch

Lennox International, Inc.
Only 4 left!

65W49 Lennox Pressure Switch 0.6" WC, SPST, Pressure Switch

$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00