8″ Inch Flexible Aluminum Ducting Hose Insulated R-8.0 Air Duct Pipe for for Heavy Duty HVAC & Exhaust Ductwork Insulation – 25′ Feet Long – in Accordance with UL 181

8" Inch Flexible Aluminum Ducting Hose Insulated R-8.0 Air Duct Pipe for for Heavy Duty HVAC & Exhaust Ductwork Insulation - 25' Feet Long - in Accordance with UL

Global Industrial 32′ Flame Retardant Flexible Duct for 16″ Diameter Fan

Global Industrial 32' Flame Retardant Flexible Duct for 16" Diameter Fan -

PVC Flexible Duct Hose, HVAC Duct Hosing Flame Retardant for Ventilator Utility Blower Fan with Adjustable Rope and D-Ring, Easy Storage (16inx25ft)

PVC Flexible Duct Hose, HVAC Duct Hosing Flame Retardant for Ventilator Utility Blower Fan with Adjustable Rope and D-Ring, Easy Storage (16inx25ft) -

Cuchiilo 10 Inch 25 Feet Insulated Flexible Duct R8,10 Inch Flexible Duct R8, Insulated 10 Inch, Insulated Flexible Duct HVAC, for Heating and Air Conditioning HVAC Systems

Cuchiilo 10 Inch 25 Feet Insulated Flexible Duct R8,10 Inch Flexible Duct R8, Insulated 10 Inch, Insulated Flexible Duct HVAC, for Heating and Air Conditioning HVAC Systems -

HVAC Premium 16” Inch Flexible Aluminum Ducting Hose Insulated R-4.2 Air Duct Pipe for Heavy Duty HVAC & Exhaust Ductwork Insulation – 25′ Feet Long in Accordance with UL 181 R-4.2 Yellow

HVAC Premium 16

Allegro Industries 9600-500 Layflat Ducting, 500′, Fits 16″ and 20″ Blowers

Allegro Industries 9600-500 Layflat Ducting, 500

RectorSeal Fortress Lineset Ducting 84005 Lineset Covers, Easy Installation, HVAC, 3.5″ 12′

RectorSeal Fortress Lineset Ducting 84005 Lineset Covers, Easy Installation, HVAC, 3.5" 12' - Ducting Components -

Global Industrial 16″ Portable Ventilation Fan With 32′ Flexible Ducting

Global Industrial 16" Portable Ventilation Fan With 32' Flexible Ducting -

18″ x 25 ft. Insulated Flexible Duct,R 4.2

18" x 25 ft. Insulated Flexible Duct,R 4.2 - Heating Vents -