Best Venting Hvac Ducting in 2025

Designed for ventilation applications including HVAC, dryer, grow rooms and tents.

Four layer design makes it more durable and resistant to leaks, tears, and cuts.

Steel-wire spiral structure is flexible and easy-to-install in hard to reach places.

Extremely Durable: This is a heavy duty 26 gauge galvanized roof vent hood with a high performance polyester powder coated finish.

Protection Against Corrosion: Our vent caps are ASTM B117 tested for anti-corrosive properties, showing very little or no signs of corrosion on our high performance polyester powder coated galvanized steel surface. Other leading and foreign brands have little or no corrosive protection.

Features: Riveted construction; does not use caulk. Includes pre-drilled holes for easy mounting. Vent also comes with a flapper (damper) that prevents back drafts.

Perfect Connector: The VIVOSUN ducting is primarily used with duct fan systems in various air circulation and ventilation projects to move and transport air, increasing airflow and easing connections between spaces; It's compatible with front-mounted and top-loading dryers/fans

Premium Material: Made of high-quality aluminum, it is resistant to high-temperature and corrosion-resistant, being able to serve for a long time; The stainless steel clamps are rustproof, corrosion-resistant, and heavy-duty, ensuring a seamless junction

Multi-Layer Protection: It features 3-layer protection, making it more durable and resistant to leaks than single-layer ones; The internal and outer layers are made of heavy-duty aluminum foil that is fire/flame-retardant; Its middle layer adopts PET thermoplastic that protects the ducting from cuts and tears, all while stopping leakage

Perfect Connector: The VIVOSUN ducting is primarily used with duct fan systems in various air circulation and ventilation projects to move and transport air, increasing airflow and easing connections between spaces; It's compatible with front-mounted and top-loading dryers/fans

Premium Material: Made of high-quality aluminum, it is resistant to high-temperature and corrosion-resistant, being able to serve for a long time; The stainless steel clamps are rustproof, corrosion-resistant, and heavy-duty, ensuring a seamless junction

Multi-Layer Protection: It features 3-layer protection, making it more durable and resistant to leaks than single-layer ones; The internal and outer layers are made of heavy-duty aluminum foil that is fire/flame-retardant; Its middle layer adopts PET thermoplastic that protects the ducting from cuts and tears, all while stopping leakage

LIGHTPROOF DUCTING - We made this aluminum 6 inch duct with your Grow Room needs in mind. Thick layer of Black PVC on this ducting prevents light leaks. Works with exhaust and intake fans, carbon filters and hooded lights which are 6" in diameter. This duct has insulation R value of 0.

4 LAYER PROTECTION- Our 6 inch flexible duct Keeps your ventilation system free of rips, pin holes and resistant to leaks. Under the White PVC layer our ducting is built with 2 layers of Aluminum Foil With a layer of PET and Steel Wire Helix to preserve the shape

FLEXIBLE & EASY TO USE- TerraBloom 6 inch duct hose is super flexible and easy to install. It will slide right on your Duct Fan, Vent Exhaust, Carbon Filter or Light Reflector. This HVAC ducting includes a pair of 6 Inch Clamps to make the installation a breeze

PVC composite aluminum foil tube: (single-layer aluminum foil tube thickness single thin, density spacing, easy to rupture, short service life) RichYa PVC lamination + double aluminum foil three layers than single-layer aluminum foil tube thicker encryption high temperature resistance, corrosion resistance, not easy to rupture, tube thick circle spacing small uniform distribution of sturdy and durable, reduce noise long service life.

3 layers of thickened aluminum foil: three layers of thickening, processing the upper layer of material production, internal double aluminum foil flame retardant material, double flame retardant, smoke exhaust smooth, easy to handle the odor of grease and smoke

Bend at will: one-piece design bend the curvature of the tube body close to the round, can be expanded and bent at will, the use of resistance to reduce the exhaust and smoke exhaust smoothly and unhindered sealing. Large diameter design, rapid smoke exhaust, interface reinforcement, tighter connection

LOW NOISE SILENCER: designed for reducing noise from fans and carbon filter systems, can decrease the noise by up to 50%.

4" DUCTING LIGHTPROOF: Thick layer of Black PVC on Hon&Guan ducting prevents light leaks. Works with exhaust and intake fans, carbon filters and hooded lights which are 4" in diameter

3-LAYER TOUGH: Keep your ventilation system free of rips and pin holes. Under the Black PVC layer our ducting is built with 2 layers of Aluminum Foil With a layer of PET and Steel Wire Helix to preserve the shape,keep your ventilation system free of rips and pin holes

4 Inch Flexible Ducting-Made of Aluminum and PVC Thermoplastic. 4 inch (100mm) diameter and 10 feet total length. Come with 2 pcs stainless steel clamps.Suitable for working between -22 and 266℉.

Designed For Ventilation Applications - We designed this aluminum and PVC thermoplastic constructed flexible ventilation ducting according to your HVAC, dryer, grow rooms or tents.

4-Layer Deisgn - Our 4 inch dryer hose features Four-layer protection, making it more durable and resistant to leaks than single-layer designs. The internal layer is made of heavy-duty dual aluminum foil that is fire/flame resistant, the outer layer adopts grey dual PVC thermoplastic that protects the aluminum from cuts and tears while preventing leakage

[Flexible Material]- The Dryer Hose is made of 2 layers of aluminum foil and a built-in corrosion-resistant steel wire spiral, The PVC film help to be light-proof and noise reduction.

[High Temp Resistant]- Dryer exhaust hose fire, no harmful gas release at high temperature. Forms a tight seal to direct fumes and humidity safely away from living spaces. The temperature endurance range is -22 - 302 F. (-30°C - 150°C).

[Wide Application]- Flexible ducting is applicable for HVAC, clothes dryer, kitchen exhaust fan, grow tent, green room, hydroponic system, It can also be used to cool closets, racks, and cabinets.

Flexible PVC Ducting: Applied hard-wearing, flexible vinyl woven polyester with carbon wire spring and adhesive tape, smooth inside wall. Designed to be super flexible and flame-retardant.

Ropes Adjustable: Thick ropes can be adjusted to fit the duct' mouth size, ensuring a good-sealing environment and high woking efficiency.

D-shaped Rings: D-shaped rings are set for hanging the ducting freely. Two stainless steel rings plus 4 D-shaped rings of two meters for one ring.

Stainless steel inner wall, Aluminized steel outer wall.

Component that is used in a typical venting installation. Mostly use with DuraVent factory-built chimneys.

Improves stove performance by maintaining high flue gas temperatures for a steady draft.

6" Adjustable Duct Elbow for home HVAC Duct.

Sheet Metal HVAC Elbow.

6 Inch Gored Duct Elbow

Size: 3-1/4" x 10" x 4"30 gaugeHVAC galvanized register bootUsed for right-angle center-end transition from round pipe or insulated flexible duct to a register or grille

🔄【Ideal Ducting】This is a 4-inch diameter vent hose. You can adjust the length from 1.3 to 25 feet for any general purpose HVAC application.

🔄【4-Layer Structure】Our vent hose is constructed of dual-layer flame-resistant aluminum foil and dual-layer PVC thermoplastic. With protection, this duct hose is extremely durable and not easily torn compared to a single-layer design.

🔄【Efficient Spiral Wiring】The built-in spiral steel-wire makes the hose flexible and easy to adjust while keeping the tube smooth and straight when stretched out, maximizing airflow and reducing CFM losses.

Made of High Quality ABS Plastic and perfectly designed for DIY and Trade

Duct Connector Flange. Easily will fit with any 4" inch plastic pipes for HVAC

Easy to install - pre-bored holes to ensure easy and secure mounting to wall, ceiling or any other surface

6", 6RV-RT, Round, Type B, Gas Vent Top

Top round for gravity draft venting of LP or natural gas burning appliances

Not for wall furnaces or wood burning applications

White vinyl hose

2 plastic clamps

4 inch Dia

Galvanized to end a heat duct run and used for a floor register outlet

Stainless steel inner, double wall smoke pipe designed for superior venting and safety at reduced clearances

Fits major woodstove brands

Manufactured in United States

Good quality product

The product adds a great value

Manufactured in China

Imperial mfg. Group USA

Can also be used with metal risers

This product is manufactured in United States

✅ 𝐃𝐔𝐂𝐓 𝐑𝐄𝐃𝐔𝐂𝐄𝐑 & 𝐈𝐍𝐂𝐑𝐄𝐀𝐒𝐄𝐑: Sheet metal HVAC Duct Reducer for flexible or metal HVAC Ducts and air vents. Used to connect two air ducts of different diameters to create a seamless ventilation. Sturdy steel ducting is perfect for DIY and Trade use. Our HVAC Duct Reducer & Increaser Galvanized Metal for Longer Lasting Quality. Galvanized pipe to be used for gas heating, ventilation and air conditioning only. Not to be used for solid fuel venting and Non-Crimped Ends.

✅ 𝐇𝐈𝐆𝐇-𝐐𝐔𝐀𝐋𝐈𝐓𝐘 𝐌𝐄𝐓𝐀𝐋 𝐒𝐇𝐄𝐄𝐓: Our sheet metal reducers and increasers are manufactured from the highest quality of galvanized steel. These reducers are made of galvanized sheet metal. Perfect for use with either flexible duct or rigid sheet metal duct. Never be restricted to your air conditioner's ducting requirements again. Single Wall Galvanized Metal reducer for Duct / pipe reducing. Great for professionals and Homeowners. Metal is easy to drill with Self Drilling Screws.

✅ 𝐄𝐗𝐓𝐑𝐀 𝐒𝐓𝐑𝐄𝐍𝐆𝐓𝐇 𝐀𝐍𝐃 𝐅𝐈𝐓𝐓𝐈𝐍𝐆𝐒: These galvanized duct reducers / Increaser can be used with fans, ducting, air-cooled hoods, and ventilation systems, that allowing you to lengthen and extend your ducting. They are the perfect sheet metal fitting for changing duct sizes and utilized for maintaining the best airflow for maximum efficiency in your HVAC duct system.

D______ ______________ & __________________: Sheet metal HVAC Duct Reducer for flexible or metal HVAC Ducts and air vents. Used to connect two air ducts of different diameters to create a seamless ventilation. Sturdy steel ducting is perfect for DIY and Trade use. Our HVAC Duct Reducer & Increaser Galvanized Metal for Longer Lasting Quality. Galvanized pipe to be used for gas heating, ventilation and air conditioning only. Not to be used for solid fuel venting and Non-Crimped Ends.

________-______________ __________ __________: Our sheet metal reducers and increasers are manufactured from the highest quality of galvanized steel. These reducers are made of galvanized sheet metal. Perfect for use with either flexible duct or rigid sheet metal duct. Never be restricted to your air conditioner's ducting requirements again. Single Wall Galvanized Metal reducer for Duct / pipe reducing. Great for professionals and Homeowners. Metal is easy to drill with Self Drilling Screws.

__________ ________________ ______ ________________: These galvanized duct reducers / Increaser can be used with fans, ducting, air-cooled hoods, and ventilation systems, that allowing you to lengthen and extend your ducting. They are the perfect sheet metal fitting for changing duct sizes and utilized for maintaining the best airflow for maximum efficiency in your HVAC duct system.

HIGH-QUALITY MATERIAL: Four-layer structure, constructed of fireproof aluminum foil and tear-resistant thermoplastic, with a high-temperature resistant range from -22 to 266° F. Built-in steel wire for durable use and long-lasting

AIR DUCT SIZE: 4" in diameter, can be extended the length up to 25 Feet, please check the duct size before purchasing

FLEXIBLE SPIRAL DESIGN: This aluminum ducting is flexible enough to stretch and shrink to different lengths freely, also you can bend the aluminum ducting in any direction to adapt to the rugged places

Backdraft damper with lightweight blades and foam closure shutter for quiet closure

Proven design to protect against backdraft in your appliance venting

Vertical or horizontal mounting, with one end crimped

✅ 𝐃𝐔𝐂𝐓 𝐑𝐄𝐃𝐔𝐂𝐄𝐑 & 𝐈𝐍𝐂𝐑𝐄𝐀𝐒𝐄𝐑: Sheet metal HVAC Duct Reducer for flexible or metal HVAC Ducts and air vents. Used to connect two air ducts of different diameters to create a seamless ventilation. Sturdy steel ducting is perfect for DIY and Trade use. Our HVAC Duct Reducer & Increaser Galvanized Metal for Longer Lasting Quality. Galvanized pipe to be used for gas heating, ventilation and air conditioning only. Not to be used for solid fuel venting and Non-Crimped Ends.

✅ 𝐇𝐈𝐆𝐇-𝐐𝐔𝐀𝐋𝐈𝐓𝐘 𝐌𝐄𝐓𝐀𝐋 𝐒𝐇𝐄𝐄𝐓: Our sheet metal reducers and increasers are manufactured from the highest quality of galvanized steel. These reducers are made of galvanized sheet metal. Perfect for use with either flexible duct or rigid sheet metal duct. Never be restricted to your air conditioner's ducting requirements again. Single Wall Galvanized Metal reducer for Duct / pipe reducing. Great for professionals and Homeowners. Metal is easy to drill with Self Drilling Screws.

✅ 𝐄𝐗𝐓𝐑𝐀 𝐒𝐓𝐑𝐄𝐍𝐆𝐓𝐇 𝐀𝐍𝐃 𝐅𝐈𝐓𝐓𝐈𝐍𝐆𝐒: These galvanized duct reducers / Increaser can be used with fans, ducting, air-cooled hoods, and ventilation systems, that allowing you to lengthen and extend your ducting. They are the perfect sheet metal fitting for changing duct sizes and utilized for maintaining the best airflow for maximum efficiency in your HVAC duct system.

Product 1: HIGH-QUALITY ROOF CAP: Roof cap for use with Range Hoods, LoSone Fans, and bath ventilation fans maximizes the air and sound performance of your fan or range hood

Product 1: DURABLE: Constructed of sturdy, 24-gauge CRCQ steel construction with a black electrically-bonded epoxy finish to ensure durability and lasting use

Product 1: RELIABLE: Includes a built-in, backdraft damper and bird screen provide a dependable roof cap you can rely on

Airtight Seal

Flame Resistance

Designed For Clothes Dryers Or Venting 3” Or 4” Bathroom Fans

8" Ducting with Perfect Connector: The ducting is primarily used with duct fan systems in various air circulation and ventilation projects to move and transport air, increasing airflow and easing connections between spaces; It's compatible with front-mounted and top-loading dryers/fans.

Low Noise Silencer: designed for reducing noise from fans and carbon filter systems, can decrease the noise by up to 50%. Works with exhaust and intake fans, carbon filters and hooded lights which are 8" in diameter.

3-LAYER TOUGH: It features 3-layer protection, making it more durable and resistant to leaks than single-layer ones; The internal and outer layers are made of heavy-duty aluminum foil that is fire/flame-retardant; Its middle layer adopts PET thermoplastic that protects the ducting from cuts and tears, all while stopping leakage.