Filters
Snap-On Collar; Material Steel; Product Type Snap-On Collar; For Nominal Duct Diameter 12 in; Thickness Not Applicable; Overall Diameter 11 3/4 in; Compatible with Product Type Fiberglass Back Diffusers; End Type Bend Tabs; Overall Height 4 in; Compatible with Grainger Part Number Fiberglass Back Diffusers; Shape Round; Finish Galvanized