This one piece design adds rigidity to the collar. There is a double faced gasket applied to the flange to assure a tight seal. Just peel, stick and fasten with sheet metal screws. E-Z Tap takeoff collars are fabricated in both straight and conical types, from either 26 or 24 gauge galvanized steel meeting spec ASTM A 653 (Lockforming quality). This fitting reduces the need to cut an exact hole and seals the connection after installation.
E-Z Tap Collar with Damper
Order as follows:
A equals diameter A+2” = Cone Diameter Also available with 2” Insulation Extension