4'' Dia. Round To Rectangular Duct Transition Adapter, 3-1/4" X 10" Galvanized Steel For Microwave Vent Kit Ducting Hose, Range Hood, HVAC, Exhaust

Pasimy 4'' Dia X 3-1/4" X 10'' L Rectangular To Round Duct Galvanized Steel Transition For Connecting Duct Fittings

PATIKIL 6" Duct Connector, Metal Flange Fitting Duct Air Tight Couplings Vent Extension With Flange For Heating Cooling Ventilation HVAC System

Range Hood Duct 10 in. X 19 in. X 2 in. Rectangular To Round Transition For Lift Downdraft

PATIKIL 6" X 4" X 5" 90 Degree Register Boot, Galvanized Steel Transition Rectangular To 5" Round Duct Transition Fitting For Connecting Floor

Broan 423-BROAN Model 423 10" Round To Rectangular Transition For Range Hoods And Bath Ventilation Fans | Supplyhouse.Com

ZUDKSUY 8 Inch Duct Connector Flange, Galvanized 8" Duct Flange Metal Square To Round Duct Pipe Connector For HVAC Ventilation Cooling Heating And Air

PATIKIL 7" To 6" Duct Reducer, ABS Ducting Airflow Tube Increaser Adapter Pipe Fitting For HVAC Heating Cooling Air Ventilation Systems

4 PCS 4 Inch Duct Connector Flange Inlet Fitting Metal Straight Pipe Flange Ventilation Pipe Connector For Heating Cooling Ventilation HVAC System(

BROAN-NUTONE 423 VRTCL TRANSITION TO 10 RND

601-266 - Adapter, Rectangular To Round, Dp-250 - B&C Technologies

HVAC OV 45° Degree Ø8 X 8 X 6 Inch Wye-Shape Duct Splitter - Metal 3 Way Fitting Adapter - Galvanized Steel - Spiral Duct Hose Dryer Connector - For

Deflect-O DGT36 Galvanized Transition 3-1/4" X 10 ", 6 ", 6" Dia, iPhone

PATIKIL 4 Inch Duct Connector Flange, Metal Straight Pipe Flange Square To Round Interface Air Duct For Heating Cooling Ventilation HVAC System

3 Inch Duct Connector, HG Power 2-Pack 75mm ABS Straight Pipe Flange For 3" Ducting Pipes Hoses Heating Cooling HVAC Ventilation Use, Black

Vent Systems 12" To 8" Inch Saddle Branch For HVAC Systems - Collar Connector For Optimal And Efficient Airflow. Round Duct Takeoff For Duct

Vent Systems 6" Inch To 4" Inch Galvanized Steel Duct Reducer With Rubber Gasket - Vent Adapter - Fitting Pipe - Connector, Increaser, Reducer, Cone -

GE RAK6053 Duct Adapter

Nutone Broan 423 Vertical Transition 4-1/2" X 18-1/2" To 10" Round, 1 Count (Pack Of 1)

Zonon 4 Inch Duct Connector Flange Galvanized Steel Dryer Vent Connector With Rubber Ring And Screws Straight Or Flex Pipe Flange For Heating Cooling

8'' Inch Galvanised Steel - Metal Duct Connector, Straight Pipe Coupler

Vent Systems 8" To 4" Inch Duct Reducer Adapter - Galvanized Steel HVAC Transition Fitting - Heavy-Duty Cone Connector For Round Pipe - For

Elifecenter Universal Stainless ID 3 Inch To OD 3.5 Inch Exhaust Adapter Reducer (3" ID To 3-1/2" OD)

Vent Systems 5" Inch To 3" Inch Duct Reducer Adapter Connector Fitting Pipe Increaser Reducer Cone For HVAC Ventilation Systems, Exhausts And Grow