Pay in 4 interest-free payments of $32.65 Learn more
Ships within 48 hours · Estimated delivery Oct 25 - Oct 30
Most failures result from mineral scale buildup on the probe tip or internal moisture penetration
you eliminate the risks associated with generic alternatives
What happens if the flow switch fails
Engineered with a 3/4" NPT connection and a rugged aluminum body
Lennox 21L87 TXV R-407A Most failures result from mineralMaintain precise system balance with the Lennox 21L87 TXV, a genuine OEM thermostatic expansion valve designed specifically for Lennox air conditioning and heat pump units. This valve is engineered to modulate refrigerant flow dynamically based on the cooling load, ensuring the evaporator operates at peak efficiency. By maintaining the optimal superheat at the evaporator outlet, the 21L87 prevents liquid slugging and protects the compressor from
