6" X 3" Duct Reducer & Increaser Non-Crimped Single Wall Galvanized Sheet Metal ducting Connector for Airflow, Heating, Cooling, & air Ventilation Systems Fittings

iPower 8 inch 25 feet Dryer Vent Hose, Flexible Aluminum Foil Non-Insulated Ducting with 2 Clamps for HVAC Ventilation and Exhaust, 8 in 25 ft, Silver

Pangda 25 ft Duct Hosing PVC Flexible Ducting Hose 12 Inch HVAC Duct Hosing Flame Retardant with 2 Stainless Steel Air Ducting Clamps Adjustable Hose Clamps for Utility Blower Exhaust Fan

DOITOOL 7 Inch 5 Feet Dryer Vent Hose Aluminum Flexible Ducting, Duct Hose for Heating, Ventilation and Air Conditioning

KOHLER 836664 Part, Unfinished

Therwen Backdraft Damper Duct Manual Volume Damper with Sleeve Stove Pipe Galvanized Sheet Adjustment Airflow Ducting Branch HVAC Air Balancing for Range Hoods, Fans(4 Inch, 1 Pc)

2 Pcs 6 Inch Heavy Duty Adjustable Pipe Bracket，Heavy Duty Clamp Chimney Mount,Flag Pole, Pipe

PATIKIL Duct Connector Flange, 4 Inch, 4 Pack Pipe Exhaust Flange, Metal Inlet Outlet Fitting Duct Mounting Plate for Heating Cooling Ventilation, HVAC System

6DP-XRB 6" Extended Roof Bracket Support: Stainless Steel Pipe Support Bracket with Adjustable Legs - Wood Stove Chimney Kit Hardware & Stove Pipe Support Against Wind and Snow

Nordfab Ducting 3281-0600-100000 QF Rigid Flex Steel Hose, 6" dia, Galvanized Steel