EZ Plenum EZFC04 4"-Inch Regular Tab Collar, Starting Duct Collar

EZ Plenum's tab duct collars are one of the most durable collars manufactured. Our duct collars are made of 28GA galvanized steel and they are one-piece. The EZ Plenum 4"-inch starting collar is suitable for most HVAC applications, providing a transition from a flat surface like a plenum (made out of metal, ductboard, etc.) to round pipe or insulated flex duct. It is normally used with ductboard, an internally lined or unlined plenum. Tabs fit most ductboard thicknesses through 1-1/2"-inch (R6 vale) Durable 28-gauge (28GA) galvanized steel construction Transition from flat surface to round flex duct or pipe