Armstrong Fluid Technology 816322-111K Impeller Kit 320788-704 Frequency depends on gas quality

Frequency depends on gas quality and pressure drop

ensuring quiet operation and protecting inducer motor bearings

By utilizing the 302-306 valve rebuild components

it is functionally equivalent and designed for the same 16-inch burner housing

Always verify your supply voltage before powering the unit to prevent damage to the PCB

Armstrong Fluid Technology 816322-111K Impeller Kit 320788-704 Frequency depends on gas qualityThe Armstrong Fluid Technology 816322 111K Impeller Kit is a high precision OEM replacement part designed to restore hydraulic efficiency in centrifugal circulator pumps. This universal kit features a 3. 35 inch (3 3 8") Noryl impeller, specifically engineered for Armstrong Series S and H models, including the S 34, S 35, and H 32. As the advanced successor to legacy parts 816322 111 and 810119 003, this kit provides a complete solution for