System Longevity: 40-micron filtration prevents debris from reaching the thermal expansion valve (TXV)

40" water column setpoints for precise safety monitoring

Low Water Cut-Off Gasket

the 100112986 helps mitigate heat loss and maintains consistent flame signal stability

This part is the primary collector pan only

Lennox 11W00 Piston Assembly 322838-754 System Longevity: 40-micron filtration preventsThe Lennox 11W00 Piston Assembly is a precision engineered . 067 fixed orifice metering device designed for consistent refrigerant flow control in Lennox and Allied Air residential cooling systems. Engineered for high pressure durability, this HVAC expansion piston ensures optimal evaporator coil performance by maintaining the necessary pressure drop between the liquid line and the coil. Whether you are performing a dry charge unit installation or