Lennox 54M90 Orifice 321042-401 Industrial Durability: Built to withstand

Industrial Durability: Built to withstand commercial environments

Using an R-22 valve on an R410A system will lead to improper mass flow rates and potential compressor damage due to the significant pressure differences between the two refrigerants

this 40VA transformer is the standard replacement for most older Reznor gas-fired units requiring a 120V primary

Always verify your pump's construction code and size before installation

Reduces downtime by providing pre-formed bends that eliminate field-fabrication errors

Lennox 54M90 Orifice 321042-401 Industrial Durability: Built to withstandThe Lennox 54M90 LP Orifice is a critical metering component designed for precise gas to propane conversion in compatible Lennox heating units. Engineered for durability and high tolerance performance, this 0. 034 inch orifice ensures steady pressure regulation and fuel flow, preventing common combustion issues such as soot buildup or irregular flame patterns. For contractors performing a Lennox furnace LP conversion, using OEM spec orifices is