Standard Fitment: The 1/8" NPT male connection is compatible with the majority of residential radiator tappings

no continuity indicates a tripped manual reset or a failed internal disc

Micro-cracks in the ceramic insulation or oxidation on the electrode can cause current leakage

While many units support single-point power

Armstrong Fluid Technology 810120-352K Hardware Kit 323055-751 Standard Fitment: The 1/8" NPTThe Armstrong Fluid Technology 810120 352K Hardware Kit is an essential OEM maintenance solution designed for the secure assembly and sealing of commercial circulator pumps. This comprehensive kit includes high grade flange gaskets, capscrews, nuts, and bolts, providing everything required to restore peak operational efficiency. As a direct replacement for the legacy Armstrong 810120 204, this hardware set ensures a precision fit for a wide range of