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Always verify your unit's series number before installation to ensure the PWM signal and voltage requirements match
Designed for standard screw-in installation
As a genuine Lennox 104849-04 component
Secure Fixation: The locking collar ensures a tight grip on 1-inch shafts
If you observe downstream pressure creep (where the pressure rises while no water is running) or if you see water leaking from the spring cage weep hole
Armstrong Fluid Technology 805188-111 Flange Kit 322838-753 Always verify your unit's seriesThe Armstrong Fluid Technology 805188 111 Flange Kit is a professional grade solution designed for seamless integration into high performance hydronic and HVAC systems. This 3 inch cast iron flange kit serves as the direct, modernized replacement for the legacy 105188 011 model, ensuring long term reliability and leak free operation. Engineered specifically for circulating pump installation, this kit is compatible with Armstrong Series E. 2 pumps,