Efficient Ignition: Designed for an optimized warm-up period

protecting the silicone diaphragm and calibration spring from industrial wear

OEM Compatibility: Designed for seamless integration with Reznor gas-fired unit heaters requiring a standing pilot LP setup

Common Questions What is the maximum pressure rating for this 4-inch thermowell

White-Rodgers ACM1400M-108 Air Filter 30067439-890 Efficient Ignition: Designed for anThe White Rodgers ACM1400M 108 is a high capacity 16 x 25 media filter engineered for residential and light commercial forced air systems. Rated at 1400 CFM, this MERV 8 air filter provides a low pressure drop while effectively capturing airborne contaminants, protecting the evaporator coil from dust accumulation and maintaining system static pressure. As the direct replacement for ACM1400 and ACM1400U 108, it features an exact fit design that