Lennox 92L21 Pressure Switch

1.61"wc SPST dual 1/4" barb connection Pressure Switch

Lennox 92L21 Pressure Switch – 1.61" WC SPST Dual Barb | R20293412

The Lennox 92L21 Pressure Switch (Model R20293412) is a high-quality OEM replacement part designed to ensure safe, reliable operation of your HVAC system. Engineered for precision, this pressure switch actuates at 1.61" W.C., providing accurate airflow monitoring and system protection. Its SPST-N.O. contact configuration and dual 1/4" barb connections make it easy to install and compatible with a wide range of Lennox equipment.

Perfect for technicians and homeowners looking to maintain peak system performance, this pressure switch is built to Lennox’s strict standards for durability and reliability.

Key Features

• Brand: Lennox

• Catalog Number: 92L21

• Model/Part Number: R20293412

• Type: Pressure Switch

• Actuation Pressure: 1.61" W.C.

• Configuration: SPST-N.O. contact

• Connection Type: Dual 1/4" barb

• Contact Rating: 5 Amp resistive at 125 VAC

• Gross Weight: 0.4 lb

• UPC: 66255134180

Benefits

• Ensures proper airflow and safe furnace operation

• Direct OEM replacement—fits and functions like the original

• Durable design for long-term performance

• Easy installation with standard 1/4" barb connections

Applications

Ideal for Lennox furnaces and HVAC systems requiring a pressure switch with 1.61" W.C. actuation and SPST-N.O. configuration.