the Lennox 46K18 ensures optimal fuel-to-air mixing for clean ignition

High-Temperature Metallurgy: Constructed from heavy-duty materials designed to withstand the corrosive environment of high-efficiency combustion

As a technician-grade replacement

Its powder-coated finish provides superior corrosion resistance

Honeywell EC-FX-NH3-HR Replacement Ammonia Cell 30067439-890 the Lennox 46K18 ensures optimalThe Honeywell EC FX NH3 HR is a high resolution electrochemical sensor designed specifically for the EC FX NH3 ammonia gas detector. Engineered to handle dual range detection, it monitors concentrations of 0 500 ppm and 0 1000 ppm with high precision in harsh industrial refrigeration environments. As the direct replacement for M 507975, this cell ensures seamless mechanical and electrical compatibility during scheduled maintenance cycles. This