York S1-9951-1361 Orifice Always use the orifice size

Always use the orifice size specified by the manufacturer's LP conversion kit

This link is specifically rated for the FD-1300 dynamic damper

providing a robust seal and localized control of gas velocity

This spring is the standard choice for contractors upgrading residential service regulators to higher pressure commercial requirements

Common Questions What tube materials can I use with this adapter

York S1-9951-1361 Orifice Always use the orifice sizeThe York S1 9951 1361 is a precision engineered natural gas orifice designed for specific York furnace burner assemblies. This component features a drill size 29 specification, which translates to a precise . 136 orifice diameter. When diagnosing combustion issues or performing a gas valve manifold service, ensuring the correct flow rate is critical for thermal efficiency and flame stability. This OEM York replacement part provides exact tolerances