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

this dual-stage gas valve can be converted for Liquid Propane applications using the manufacturer-specified LP conversion kit

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

this spring return actuator provides 18 in-lb of torque

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