Armstrong Fluid Technology 810120-351K Hardware Kit 326070-701 System Feedback: Built-in end switches

System Feedback: Built-in end switches allow contractors to verify damper status at the control board without physically inspecting the ductwork

Check for visible discoloration

this normally closed on/off valve utilizes a bipolar magnetic operator to provide precise flow control under a maximum operating pressure of 0

Genuine OEM Replacement: Ensures exact fitment and voltage compatibility for Heil Quaker and ICP-manufactured systems

which is standard for the secondary side of furnace and air handler transformers

Armstrong Fluid Technology 810120-351K Hardware Kit 326070-701 System Feedback: Built-in end switchesThe Armstrong Fluid Technology 810120 351K Hardware Kit is a precision engineered circulator pump accessory designed for high performance hydronic systems. This comprehensive kit includes commercial grade nuts, bolts, and gaskets specifically manufactured to ensure a leak proof seal and structural integrity during pump maintenance or installation. Serving as the verified 810120 351K direct replacement for legacy part numbers 810120 244 and 810120 202,