The model 820 collar is a perfect solution for getting a start collar into the compressed fiberglass of our molded R6 backs. These can be used with any application where a molded R6 back is present.
TRUaire Extended Collar, Unpainted, Series: 820, Accessory Type: Extended Collar, For Use With: 1010MAS/MAR Series Perforated Face Diffuser, 2000 Series Lay-In Plaque and Step Down Cone Diffuser with R6 Molded Backs, 2600 Series Blade Diffuser, 5400 Series Lay-In Directional Diffuser and T-Bar Return Air Panel, Steel, Electro Galvanized, 8 in Dia x 2 in D, Import