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This Imperial 3-in to 4-in Aluminum Increaser allows you to connect pipe of different diameters where air flows from a smaller pipe into a larger pipe. Crimped on the large end, it increases the diameter of a 3-in round return or exhaust air pipe to 4-in, while maintaining optimal airflow. The increaser is ideal for general purpose venting applications and is quick and easy to install.
Imperial® Vent Increaser, 3 x 4 in, Crimped x Smooth Connection, Aluminum, 6 in H
Connection Type | : | Crimped x Smooth |
Dimensions | : | 6 in H |
Material | : | Aluminum |
Size | : | 3 x 4 in |