Elbow 45° 3"

The 45-Degree Elbow Extension is used when a duct is required to make a tight bend, in which case one or two elbows will prevent compromised air flow in the duct. The elbow is designed to connect with other components. To ensure acceptable airflow, two elbows are used to make a 90 degree duct transition, when the inside radius of the duct transition is less than the diameter of the duct. Building code requires the use of an elbow fitting when the inside radius of a duct is less than the diameter of the duct.

For use with 3” or 4” duct.