The Master Flow 3-1/4 in. x 10 in. Short Way 90° Rectangular Elbow helps create right angle turns in rectangular stack duct runs. This elbow is made of zinc-coated， 30-Gauge galvanized steel. You can install this elbow with sheet metal screws (not included). It is recommended to seal seams with code approved mastic， sealant or duct tape.
Made of zinc-coated galvanized steel
30-Gauge， galvanized steel construction
Helps create a right angle turn in rectangular stack duct runs
Seal seams with code approved mastic， sealant or duct tape
Install with sheet metal screws (not included)
Recommended to insulate ductwork for greater system efficiency
Features a minimum temperature rating of -100°F and a maximum temperature rating of 390°F
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