Fantech RSK 4, 4" Back-Draft Damper 1/2" This easy-to-install Dual Fuel Kit

This easy-to-install Dual Fuel Kit can be used with heat pumps and fossil fuel furnaces having up to 4 stages of heating and 2 stages of cooling

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02 mm Joint Thickness: 0

5 quick-change

These screwdrivers have mini Cushion-Grip™ handles that provide a comfortable grip

Fantech RSK 4, 4" Back-Draft Damper 1/2" This easy-to-install Dual Fuel KitFantech RSK 4, 4" Back Draft Damper Backdraft damper for circular ducts, manufactured from galvanized sheet metal. The two blades are spring loaded. Every damper is built with performance in mind. The damper can be mounted vertically. Damper blades formed from aluminum H14 3 32" diameter brass central rod Stainless steel torsion spring 24 GA, G90 galvanized steel casing EPBM synthetic rubber gasket Manual