the door prevents accidental setting changes and protects the control interface from moisture and dust

Supports VB-7XXX and VB-9XXX series valve bodies

this maintenance-free CO2 transmitter provides reliable 0-2000 PPM CO2 monitoring without the need for periodic recalibration

What happens if the system exceeds 2000 CFM

Replacing a 16x20x4 furnace filter with this high-efficiency media improves indoor air quality (IAQ) and optimizes the thermal transfer efficiency of the heat exchanger

Lennox 28W70 Defrost Sensor R-410A the door prevents accidental settingThe Lennox 28W70 Defrost Sensor w Harness is a critical OEM replacement component designed to maintain optimal efficiency in Lennox heat pumps and refrigeration systems. This 50 inch wiring harness with defrost sensor assembly includes a high precision thermistor that monitors evaporator coil temperatures to prevent excessive frost accumulation. Engineered for a seamless fit, the Lennox 101334 01 ensures the defrost control board receives accurate