York S1-373-12894-705 Heat Exchanger 30067439-890 The 100167445 is primarily used

The 100167445 is primarily used in Lochinvar Knight XL (KBN399 through KBN800) and FTXL (FTX400 through FTX850) models

though upright mounting is required if a vent limiter is utilized

and 1/2" bore dimensions against your existing unit's specifications to ensure a proper fit

Its robust bimetallic disc construction provides consistent cycling reliability

the Watts 0887292 is the direct replacement for both standard 009 and lead-free LF009 series in the 1/4"–1/2" size range

York S1-373-12894-705 Heat Exchanger 30067439-890 The 100167445 is primarily usedThe York S1 373 12894 705 Heat Exchanger is a precision engineered 5 tube heat exchanger designed for critical thermal transfer in residential and light commercial HVAC systems. This OEM York replacement part features a high grade copper and aluminum construction, ensuring balanced thermal conductivity and resistance to thermal stress. As a veteran grade furnace heat exchanger, it is built to 5 tube specifications to maximize the surface area for