and exhaust ventilation units

Stainless Steel Power Element: Protects against atmospheric corrosion and fatigue

to ensure precise burner and boiler control

ensuring a drop-in installation without the need for manifold modifications

and E7 series electric furnaces

Armstrong Fluid Technology 816009-211 Flange Kit 320735-701 and exhaust ventilation unitsThe Armstrong Fluid Technology 816009 211 Flange Kit is a precision engineered 1 1 2" Cast Iron Flange Kit designed for seamless integration with Armstrong circulator pumps. Specifically engineered to facilitate secure HVAC pump flange replacement, this kit ensures a leak proof connection in hydronic heating and cooling systems. Constructed from high grade cast iron, the 816009 211 offers exceptional durability and resistance to thermal stress, making