Mitchell Metal MM-34810 HVAC Ductboard Starting Collar with Crimp

Mitchell Metal MM-34010 HVAC Ductboard Starting Collar

Mitchell Metal MM-31064 Duct Reducer (6"-4")

Mitchell Metal MM-31043 Duct Reducer (4"-3")

Mitchell Metal MM-9166 6" HVAC Flexible Collar Connector

Mitchell Metal MM-3488 HVAC Ductboard Starting Collar with Crimp

Mitchell Metal MM-3486 HVAC Ductboard Starting Collar with Crimp

Mitchell Metal MM-3408 HVAC Safety Tab Starting Collar

Mitchell Metal MM-3406 HVAC Safety Tab Starting Collar

Mitchell Metal MM-2054 4" Adjustable Duct Elbow

Mitchell Metal MM-91612 12" HVAC Flexible Collar Connector

Mitchell Metal MM-91610 10" HVAC Flexible Collar Connector

Mitchell Metal MM-9164 4" HVAC Flexible Collar Connector

Mitchell Metal MM-9168 8" HVAC Flexible Collar Connector

Mitchell Metal MM-310108 HVAC Duct Reducer (10"-8")

Mitchell Metal MM-3101210 HVAC Duct Reducer (12"-10")

Mitchell Metal MM-31086 HVAC Duct Reducer (8"-6")

Mitchell Metal MM-9158 8” Round HVAC Duct Damper

Mitchell Metal MM-9154 4” Round HVAC Duct Damper

Mitchell Metal MM-9156 6” Round HVAC Duct Damper

Mitchell Metal MM-91510 10” Round HVAC Duct Damper

Mitchell Metal MM-91512 12” Round HVAC Duct Damper