Lennox 12K48 Orifice The silver cadmium oxide contacts

The silver cadmium oxide contacts are rated for high-inrush currents

it is recommended to pour approximately one cup of water into the assembly to establish the initial water seal before cycling the furnace

Premium American-Made Quality: Machined from domestic high-copper brass for superior corrosion resistance and durability compared to low-quality imports

OEM Standards: As a genuine York service part (S1-025-29041-007)

The captured seal allows you to attach a manometer hose directly to measure the static or flow pressure of the gas line

Lennox 12K48 Orifice The silver cadmium oxide contactsThe Lennox 12K48 LP Burner Orifice is a critical component for maintaining precise manifold pressure in Lennox furnace LP conversion kits. Engineered with a specific drill size calibrated for Propane (Liquid Petroleum) applications, this brass burner orifice ensures the correct air to fuel ratio demanded by high efficiency heating systems. Whether you are performing a seasonal tune up or a full field conversion, using OEM Lennox replacement parts is