this venturi assembly utilizes precise internal geometry to create the necessary vacuum for stable combustion air intake

specifically compatible with 19XR and 19XL series units

this liquid propane conversion kit provides the exact springs and orifices needed to prevent soot accumulation and optimize thermal efficiency

Enhanced Power Handling: Rated for a robust 40 FLA / 50 RES

This often indicates restricted airflow

Patterson-Kelley 26-0000-0468 LWCO Probe 320720-756 this venturi assembly utilizes preciseThe Patterson Kelley 26 0000 0468 LWCO Probe is a precision engineered low water cut off sensor designed for critical fluid level monitoring in commercial boiler systems. Built with high grade stainless steel construction, this probe provides the durability required to withstand high pressure environments up to 250 PSIG and operating temperatures reaching 406F. As an OEM Patterson Kelley replacement part, it ensures seamless integration with NCO and