Armstrong Fluid Technology 816304-317K Plastic Impeller R-407C Surface debris can sometimes be

Surface debris can sometimes be removed

the locknut secures the adjustment screw to maintain a consistent output

The 1/4" hose barb prevents vacuum leaks

and MXZ-4C36NA

Will this pressure switch work with any 2-stage natural gas furnace

Armstrong Fluid Technology 816304-317K Plastic Impeller R-407C Surface debris can sometimes beThe Armstrong Fluid Technology 816304 317K Plastic Impeller is a precision engineered circulator pump replacement part designed to restore peak hydraulic efficiency to your HVAC system. This 5 1 4" Noryl impeller is manufactured from high quality, non ferrous composite materials, offering superior corrosion resistance and durability in demanding hydronic applications. As the official 816304 317K maintenance kit, it serves as the direct OEM pump