Armstrong Fluid Technology 105189-011 Flange 321142-301 5-inch WC setting unless the

5-inch WC setting unless the specific appliance manual dictates otherwise for high-altitude installations

and 1434 series checkstops for streamlined inventory management

It is recommended to match the VA rating of your existing unit

which is critical for preventing nuisance lockouts on high-efficiency burners

Armstrong Fluid Technology 105189-011 Flange 321142-301 5-inch WC setting unless theThe Armstrong Fluid Technology 105189 011 is a high performance 2 1 2" 4 bolt flange specifically engineered for industrial and commercial hydronic systems. Constructed from rugged cast iron, this companion flange is a critical component for ensuring a leak proof seal in demanding HVAC applications and fluid handling environments. It is a genuine replacement part primarily designed for the Armstrong S 45 circulator pump and is compatible with various