$78.00
Air King Duct Cover Extension for Air King Valencia Series Range Hoods - VALBSEBuild.com$249.99
AIR SYSTEMS INTL SVH-1225 Air Duct,12 in. dia.,25 ft. LZoro.com$446.99
AIR SYSTEMS INTL CVFCAN1225 Duct Canister,12 in.,25 ft. DuctZoro.com$9.33and up
Air King AK46R 4 inch to 6 inch Galvanized Steel Duct Transition Galvanized Steel HVAC Support Duct TransitionBuild.com & 1 more$375.99
AIR SYSTEMS INTL SVH-LF8 Lay Flat Duct, Polyeth, White, 750 ft.Zoro.com$61.10
Air King OA10VD 10" Round Galvanized Steel Vertical Outlet Adapter with Back Draft Damper HVAC Support Duct TransitionBuild.com$27.08
Air King BDD6 6 Inch Spring Loaded Round Metal Back Draft Damper with Gasket HVAC Support Duct DamperBuild.com$23.99
Aluminum 8 x 4 Inch 1-Way Air Duct Register Vent Cover for Ceiling and Wall; Modern HVAC Louver Vent Cover; Adjustable No Rust Aluminum Metal Blades; Rubber Seals for Tight Fit and Quiet Air FlowAmazon$18.99
Air Duct Reducer 5" to 4", A-KARCK Round Duct Adapter Galvanized Steel for Inline Ventilation System, Connect Pipe with Duct Fan or Dryer VentAmazon$14.77
Duct Reducter 6 to 4 Air Ducting Reducer Increaser Air Duct Adapter or Round Metal Pipe Reducer for Bathroom Kitchen Ventilation SystemsAmazon$19.49
Duct Splitter, Y Connector Air Vent Duct Hose Exhaust Pipe AdapterBed Bath & Beyond$16.40
Air Duct Screen and Carbon Filter 4 inch; Atomic InnovationsAmazon$28.00
GUIAFUHYE Duct Air Volume Damper,PVC Air Damper Valve HVAC Electric Air Duct Motorized Damper for Ventilation Pipe Valve DC 12V,75mm/2.95InchAmazon$149.00
B-Air DDK Duct Drying Kit for B-Air GP-1 Air mover, BlackAmazon$8.99
Air Vent Outlet 42mm Heater Duct Vent Outlet 360 Degrees Rotatable Diesel Parking Heater Ducting Warm Air Vent Outlet (1 Set)Amazon$27.99
Air Vent Duct Connector, for 3.74Inch ID Ducting, Celling Louver, ABS Plastic - WhiteBed Bath & Beyond$15.49
Air Aluminum Ducting 3 Inch 4.92 Feet Non-Insulated Ducting w 2 Clamps - Silver ToneBed Bath & Beyond$18.17
Ideal-Air Duct Reducer 6 in - 4 in (24/Cs)Amazon$27.19
Air Vent Ducting Piece Round Flat Pipe Outlet Exhaust Connector Compatible with Webasto Eberspaecher Parking Heater Accessory 60MmAmazon$28.41
Vintage Air 318010 Duct Hose (2.5in 10ftPiece)Amazon$142.99
AIR PRODUCTS & CONTROLS SL-2000-P Duct Smoke Detector, Photoelectric,Zoro.com$16.54
Flexible Aluminum Ducting Air Ducting Heavy-Duty Three Layer Protection for HVAC Ventilation Exhaust Duct Fan Systems 2.4 Inch(60mm)×10 Feet(3m)AmazonSAVE $36.00
$678.99$714.99
AIR PRODUCTS & CONTROLS SL-701 KIT Carbon Monoxide Duct Detector KitZoro.com$30.72
Ideal-Air Silver/Silver Flex Ducting 4 in x 25 ftAmazon$56.66
Air Ventilator White 4 in. D x 25 ft.Coil Flexible Ducting WhiteThe Home Depot$79.99
Active Air ACFB8 8 Inch Hydroponics Inline Duct Fans 471 CFM (2 Pack)Bed Bath & Beyond$16.02
Portable Air Conditioner Hose Portable Ac Window Kit Ac Duct,Air Conditioner Exhaust Hose Coupler Universal Thread Design ABS Square to Round Portable Exhaust Duct Hose AdapterAmazonSAVE $50.00
$749.99$799.99
FOGATTI RV Air Conditioner Non-Ducted 13500BTU RV Rooftop Air Conditioner - 115V(AC) including Air Distribution Box, RV AC Unit White InstaCool SeriesAmazon$27.49
75mm Car Heater Ducting Warm Air Vent Outlet 360 Degrees Rotatable & 3 Way Air Ducting Pipe Y Shape Outlet ConnectorAmazon$8.99
4 inch Dryer Vent Hose 6.5Ft/2M Flexible Clothes Dryer Ducting Air Tube Insulated Aluminum Air Duct Kit with 2 Clamps and TapeAmazon$82.94
Uonlytech 1 Pc Telescopic Ventilation Duct Automotive Air Duct Hose Flexible Ventilation Hose HVAC Ducting Dryer Exhaust Duct Useful Exhaust Tube Retractable Duct Pipe PVC Sandwich ClothAmazon$18.99
TerraBloom 8" Air Duct - 8 FT Long, White Flexible Ducting with 2 Clamps, 4 Layer HVAC Ventilation Air Hose - Great For Grow Tents, Dryer Rooms, House Vent Register LinesAmazonSAVE $0.90
$14.99$15.89
Wadoy Duct Connector Flange 6 Inch 2 Pack ABS Quality Heating Cooling Ventilation System 𝟔 𝐈𝐧𝐜𝐡 𝐃𝐮𝐜𝐭 Air Conditioner Exhaust Hose Flange Wall MountAmazon$9.90
8" Inch Air Duct Connector Flange - Straight Collar Plate with Air Tight Seal for Connecting Metal and Flex Ducting to HVAC System Vents and Walls/CeilingsAmazon$22.49
Backdraft Damper 6.3-6.9" Duct Connector Air Duct Backflow Valve Black 2 PackBed Bath & Beyond$14.39
CALIDAKA 76mm Preheater Hose Air Inlet Pipe Air Duct Drain Hose Car Heater Duct Vent Warm Air Outlet for 2000 W or 6000 W Air Heaters Flexible Aluminum Ducting FoilAmazonSAVE $3.67
$20.82$24.49
2Pcs Duct Connector Flange, Metal Square to Round Interface Air Duct - GreyBed Bath & Beyond$198.00
Achtek AIR Return 16"x 16" Duct Opening (18"x 18") | Heavy Cast Aluminum Air Grille HVAC Duct Cover with Hole for Wall/Ceiling Not for Floor || Powder Coated WhiteAmazonSAVE $1.00
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3 Inch 16 Feet Air Duct Flex Air Aluminum Foil Ducting Dryer Vent Hose HVAC Ventilation for Grow Tents, Dryer Rooms, Kitchen, 2 Clamps IncludedAmazon$99.99
Maxx Air Flexible Duct, Compatible with Maxx Air 24 in. and 30 in. Drum FansTractor Supply$10.08
TigerDuct CMCW-150 White Cuff for 1-1/2" Extendo-Duct Air Ducting Hose, -20 Degree Celsius to 80 Degree Celsius Temperature Range, 2.76" LengthAmazon$14.99
Heater Pipe Ducting Connector Y Branch T-Piece Diesel Heater Air Vent Duct Connector Adjustable Air Heater Valve Flap for Eberspacher Webasto Propex (60mm T-Piece)Amazon$12.99
5 Inch Air Duct Hose, Easy-to-Install 5 Feet Dryer Vent Hose with 2 Clamps – 4 Layer PVC and Aluminum Flexible Duct for Heating Cooling Ventilation and ExhaustAmazon$16.39
jojofuny Pipeline Connector 3pcs Connector Flange Air Vent Duct Connector Duct Air Blocker Backdraft Damper Vents Dryer Vent Connector Hard Dryer Vent Connection Abs Valve Air Outlet WhiteAmazon$24.37
Angoily 3pcs Air Conditioning Power Grille Floor Vent Covers Aria Vent Tile Wall Vent Ac 12x1 Cover Air Duct Vent Cover Grille 24x24 Floor Registers Air Outlet Ceiling White Abs PlasticAmazon$32.00
3Inch 12V Inline Duct Cooling Exhaust Blower Air Cooling Vent Fan,75mm 7W Air Duct Fan +Long Adapter for 21.53-32.3ft² Grow Tents,WorkshopsAmazonSAVE $10.00
$146.00$156.00
TrueFit Guardian Air QR+9 Compatible with RGF PHIC-QR9 Replacement Cell for Guardian Air QR+ 9" in-Duct Air PurificationAmazon$3,699.99
Germbuster Air Duct 150WayfairSAVE $23.81
$82.99$106.80
VIVOSUN 6 Inch 390 CFM Inline Duct Fan - Stainless Steel Air Ducting ClampsAmazonSAVE $3.00
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Drasum 6 Inch Ducting Insulated 14 FT Air Duct with 2 Clamps – 4 Layer PVC and Aluminum Flexible Duct for HVAC VentilationAmazon$12.99
YIJUHOU 4 Inch 8FT Dryer Vent Hose, Aluminum Foil Ducting, Silver Flexible Air Duct with 2 ClampsAmazon$21.63
Diesel Heater Pipe Ducting Set 3 in. Extendable Air Duct Hose 1 in. Stainless Steel Exhaust Pipe 2 Air VentsThe Home Depot$15.69
Gadpiparty Dryer Vent Hose 100mm*2M Flexible Dryer Ducting Tube Air Duct Aluminum Insulated Flex Hose Kit for Outdoor Indoor Heating Cooling Ventilation BlackAmazon$104.00
HVAC Air Duct Leakage Test ManualAmazon$9.44
Srutueo 6 to 4 Inch Duct Reducer Increaser ABS Air Duct Adapter Duct Fan or Dryer Vent Adapter Pipe Connector WhiteAmazon