This Master Flow 10 in. x 3-1/4 in. 90-Degree Rectangular Elbow is made of galvanized steel. It has the ability to be cut to the angle you need to create a long-way 90-degree turn in rectangular stack duct runs. Insulate with Duct wrap for maximum efficiency.
Galvanized steel construction
Creates a long-way， right-angle turn in rectangular stack duct runs
Installs with sheet-metal screws
Can be cut as needed to form a smaller angle
Insulate ductwork for system efficiency and comfort
Seal seams with code-approved mastic， sealant or duct tape (not included)
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