Armstrong Fluid Technology 812961-111 Impeller 321042-401 This specific model is calibrated

This specific model is calibrated for Natural Gas at 3

Optimizes the removal of fine particulates following the primary electronic filtration stage

technicians must avoid touching the carbide element to prevent premature failure caused by skin oils

making it an essential component for maintaining optimal thermal balance in heat exchangers

Armstrong Fluid Technology 812961-111 Impeller 321042-401 This specific model is calibratedThe Armstrong Fluid Technology 812961 111 Impeller is a precision engineered Noryl plastic impeller specifically designed to restore the hydraulic performance of your Armstrong S 25 circulator pump. This non ferrous plastic component is an essential HVAC replacement part used in heating and cooling systems where resistance to corrosion is paramount. With an outside diameter of 2 3 4 inches, it is manufactured via high quality injection molding to