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Imperial trunk or main duct offers an efficient way to distribute warm and cold air throughout your duct system. Available in a variety of sizes to route air in different directions, stack duct can be used as a main duct or branch line or in return air applications. It is ideal for use in heating, ventilation, and air conditioning applications where rectangular ducting is required. Trunk or main ducts are typically installed in floor cavities, attics, crawlspaces or in basements, allowing airflow to return and distribute throughout living spaces. Constructed from 30-gauge galvanized steel, the ribbed design adds durability and helps improve airflow. Each "L" duct section snaps together with the other half using a fastening tab to form a complete rectangular duct. The duct measures 8-inch in tall by 10-inch in wide and with length of 60-inch and can be cut to the desired size. For additional length, sections can be joined easily using drive or āSā cleats.
Effectively make angular or gradual turns in ductwork with the Imperial Round Adjustable Elbow. Adjustable from 0 to 90 degrees, the elbow is used to change the direction of airflow in round branch pipes. It is ideal for use with all heating, venting and air conditioning where rigid pipe is required. Made from 30-gauge galvanized steel, this elbow offers lasting durability. Easy to install, the elbow has a 3-inch diameter and features one crimped end for a secure connection into a pipe or other fitting of the same diameter.
If your searching for a flexible, easy to use product that's suitable for general purpose venting, look no further then Dundas Jafine's aluminum elbows. These elbows are fully adjustable to 90 degrees and feature an all aluminum 4 piece construction. Our 3 & 4 inch elbows are 28 gauge and for your heavier applications be sure to use our 4 inch, 26 gauge, E432 model
This Imperial Straight Register Boot is used to create an in-line transition from 7-inch round duct or insulated flexible duct to a 3.25-inch x 10-inch register or grille. Made from 30-gauge galvanized steel for rust resistance and long-lasting durability, this straight register boot is easy to install with sheet metal screws (sold separately) for a secure fit. Its universal design is suitable for use in most heating, venting and air conditioning applications.