Super Seal Start Collars from The Duct Shop are the fastest and easiest way to start a new round duct run off the side or end of your supply or return plenum. Super Seal Start Collars have a self adhesive gasket to seal the collar to the plenum. As with all of the products from The Duct Shop, Super Seals are manufactured from the highest quality galvanized sheet metal and to our exacting standards.
Installation Tip – You simple cut the proper size hole in your plenum, then remove the paper from the Super-Seal and stick over the hole you cut in your plenum. Insert sheet metal screws through the flange on the Super-Seal into the plenum on approximately 6” centers. Also see installation tip for Flexible Duct or Sheet Metal Duct, depending on which type you will be attaching to.