Armstrong Fluid Technology 816304-321 Plastic Impeller 323613-751 Universal Boiler Compatibility: Works as

Universal Boiler Compatibility: Works as a primary or secondary limit control for a wide range of residential and light commercial boilder models

The ball-bearing motor construction provides reliable operation under high thermal loads

Construction Quality: Robust housing designed to withstand the vibration and thermal cycling typical of outdoor condenser environments

Smith 100111217 Blower Kit is the direct OEM replacement engineered specifically for Cyclone BTH series water heaters and compatible Lochinvar Knight boilers

Optimized Airflow: 48-blade design provides superior volumetric efficiency for 10x10 blower housings

Armstrong Fluid Technology 816304-321 Plastic Impeller 323613-751 Universal Boiler Compatibility: Works asThe Armstrong Fluid Technology 816304 321 Plastic Impeller is a precision engineered circulator pump replacement designed to maintain peak hydraulic performance in your heating and cooling systems. This 4 3 4 Plastic Impeller NFI is constructed from high grade, corrosion resistant Noryl material, ensuring optimal pump efficiency and long term durability in demanding HVAC environments. As a critical component for fluid flow systems, this lightweight