Reviews Tunnel Ventilation Ducts

iPower 6 inch Backdraft Shutter Damper Back Draft Blocker, One-Way Airflow Ducting Insert Backflow Preventer with 2 Inline Springs Loaded Folding Blades, 6\

  • Lightweight valve wings: The valve wings open under the pressure created by the airflow and then automatically close with the spring work. The backflow flap closes automatically at low air volumes. The Backdraft shutter is installed so that the damper blades open only in the outflowing air direction.
  • Keep away from rattling: It has an internal foam strip and a smooth-running spring to keep the valve wings from rattling. The position of the spring should be horizontal for horizontal installations so that it can open and close optimally.
  • One-way airflow ducting insert: Back-flow valve with 2 spring-loaded wings prevents the reverse airflow movement through the ventilation duct when the ventilation system is turned off.
  • Material: The 6 inch Backdraft damper is made out of a Galvanized steel, the flap leaves are made of aluminum, while the Axis and spring are made of stainless steel and can withstand temperatures from 14 to 140 °F.
  • Wide applications: Back draught valves can be inserted into ventilation ducts which are flexible or non-flexible. Designed for use with range hoods, bathroom fans, kitchen and other home HVAC applications. Essential for HVAC ventilation.
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VEVOR Walk-in Tunnel Greenhouse, 10 x 7 x 7 ft Portable Plant Hot House w/ Zippered Door, 6 Roll-up Windows, Galvanized Steel Hoops, 1 Top Beam, and 2 Diagonal Poles, Green

  • 【Excellent Air Ventilation】With 6 mesh windows, our tunnel greenhouse can keep out small "annoyances" and increase cross ventilation and airflow. Moreover, we have a roll-up zipped door for air to freely enter and exit. Keep your space clear of debris and make sure every breath you take is one to remember..
  • 【Upgraded Galvanized Frame】We upgraded he galvanized steel to 0.8" diameter and 0.02" thickness. This high tunnel greenhouse has 3 top beams to prevent rain and snow buildup on the dome. Moreover, the diagonal poles can ensure stability during extreme weather. We have got you covered, so get ready to see your crops grow all year round..
  • 【High-Quality Waterproof PE】The walk-in tunnel greenhouse comes with a PE cover, which can protect your plants from ultraviolet rays, rust, snow, and rain all year round. The size of the cover fits the frame closely, enhancing the warmth and wind resistance in winter..
  • 【All Tools Included】 The hoop house greenhouse is easy to assemble with connectors, and screw covers can prevent scratches and rust.Includes 4 ropes, stakes, and guy ropes for added security, stability, and strength. Note: Do not tighten screws until the final position is confirmed..
  • 【Warm Home for Plants】 Our 10 x 7 x 7 ft green hous....
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Portable Greenhouse Cover - Small Greenhouse Vegetable Cover Hot House | Rainproof Antifreeze Green House Polytunnel for Indoor and Outdoor Use Wuwai

  • ✥Protection for Plants: Portable Greenhouse Cover provides a variety of plants with favorable living conditions for fast and healthy growth. It protects crops from inclement weather, birds, and outdoor elements..
  • ✥Stable and Durable: The Small Greenhouse Cover features a PE cover and green polyester edging, which provides greater durability, stability, and insulation..
  • ✥Functional Door: The Sturdy Polytunnel Cover has roller shutters for ventilation and viewing, and also protects the plants from birds. It allows you to open section at a time..
  • ✥Convenient to Use: The Grow Tunnel PE Cover is easy to install and requires no tools in the process. It's perfect for indoor and outdoor use and keeps your gardens growing year-round..
  • ✥Compact and Small: The Mini Plant Grow Tunnel is ideal for those with limited growing space, such as patios, small gardens, and balconies. The long tunnel greenhouse provides ample space for plant growth..
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AGV 2021 Men's Sport Modular Tricolore Helmet Matte Black/Carbon XL

  • Entirely built in Carbon Fiber (shell and chin), this specific structure achieves the same protection performance of Pista GP R in an incredibly lightweight construction, combining the highest levels of comfort and safety.
  • Designed to offer 190° horizontal view as the human eye capability, Sport Modular has been conceived in the wind tunnel for superior quietness, aero stability and ventilation.
  • Shell in 100% Carbon Fiber engineered in 3 sizes with 5-density EPS structure developed in 4 sizes.
  • IVS (Integrated Ventilation System) ventilation with a large front vent, a chin guard vent and a rear extractor hollowed in the shell which direct air to the rider’s head without interference with the internal sun visor.
  • Internal chin channels distribute the airflow evenly through the entire visor surface.
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Replacement Filter Pads for Renewaire ERV EV130 / BR130-4 Pack of 10-1/2 inch x 10-1/2 inch

  • QUIET, BALANCED VENTILATION: WhisperComfort cleans air and exchanges heat between incoming and outgoing exhaust air, all while operating so quietly that you might not know it's on..
  • LONG LIFE, GUARANTEED: Panasonic ventilation fans use less energy to move larger volumes of air. Less energy leads to less overheating and motor failure, saving you on repair costs. Included 3-year limited warranty..
  • CLEAN AIR AND SAVE ENERGY: Capillary Core cleans air as it exchanges heat between incoming and outgoing exhaust air. Filters are easy-to-remove and clean. Thermal fuse protection feature is available.
  • EASY-TO-INSTALL: Designed for 4" ducts, WhisperComfort includes necessary mounting hardware and is easy-to-install..
  • CODE COMPLIANT: This product is ENERGY STAR certified and complies with ASHRAE 62.2, LEED, and Washington VIAQ codes and standards..
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(12) Pack - Renewaire Compatible Replacement Filter Pads ERV EV130 / BR130-10-1/2" x 10-1/2" x 1"

  • QUIET, BALANCED VENTILATION: WhisperComfort cleans air and exchanges heat between incoming and outgoing exhaust air, all while operating so quietly that you might not know it's on..
  • LONG LIFE, GUARANTEED: Panasonic ventilation fans use less energy to move larger volumes of air. Less energy leads to less overheating and motor failure, saving you on repair costs. Included 3-year limited warranty..
  • CLEAN AIR AND SAVE ENERGY: Capillary Core cleans air as it exchanges heat between incoming and outgoing exhaust air. Filters are easy-to-remove and clean. Thermal fuse protection feature is available.
  • EASY-TO-INSTALL: Designed for 4" ducts, WhisperComfort includes necessary mounting hardware and is easy-to-install..
  • CODE COMPLIANT: This product is ENERGY STAR certified and complies with ASHRAE 62.2, LEED, and Washington VIAQ codes and standards..
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TerraBloom 6\ Air Duct - 25 FT Long, Aluminum Flexible Ducting with 2 Clamps, 3 Layer HVAC Ventilation Air Hose - Great For Grow Tents, Dryers, AC Vents

  • 6" by 25 FEET DUCT: This a value size ducting which is 25 feet long when fully extended. Plenty of length to run an air line to remote HVAC registers, build an intake and exaust ventilation inside your grow room or any other air circulation needs.
  • 3-LAYER TOUGH: Keep your ventilation system free of rips and pin holes. This ducting is built with a layer of Heat Reflective Fire-Retardant Aluminum, Covered with PET for additional endurance and Steel Wire Helix to preserve the Ducts shape.
  • FLEXIBLE AND EASY TO USE: Our 6 Inch Duct is super flexible and easy to install, it will slide right on your Duct Fan, Vent Exhaust, Carbon Filter or Light Reflector. We include a pair of 6 Inch Clamps to make the installation a breeze.
  • 6" DIAMETER WITH ADJUSTABLE LENGTH: This Ventilation Duct is 6 Inches in diameter and comes in one 25 Feet Long Piece, which can be cut into as many pieces as you need using a wire cutter and a paper knife.
  • VARIETY OF APPLICATIONS: Our Ducting Is suitable for any Heating Ventilation & Air Conditioning (HVAC) Purposes. It will move and deliver air in Kitchens (cooking exhaust), Green Houses and Grow Rooms (Air Circulation, Intake, Exhaust and Light Fixture Cooling), Bathrooms (Smell and Moisture Exhaust), Dryer Rooms, Grow Tents and other ap....
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10 Inch to 9 Inch Single Wall HVAC Duct Reducer & Increaser - Galvanized Sheet Metal Ducting Connector for Airflow, Heating, Cooling, & Air Ventilation System Extra Strength and Fittings

  • 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 s....
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iPower 4 inch Backdraft Shutter Damper Back Draft Blocker, One-Way Airflow Ducting Insert Backflow Preventer with 2 Inline Springs Loaded Folding Blades, 4", HVAC Extractor Fan Vent, Range Hoods

  • ...the valve wings from rattling. The position of the spring should be horizontal for horizontal installations so that it can open and close optimally.
  • One-way airflow ducting insert: Back-flow valve with 2 spring-loaded wings prevents the reverse airflow movement through the ventilation duct when the ventilation system is turned off.
  • Material: The 4 inch Backdraft damper is made out of a Galvanized steel, the flap leaves are made of aluminum, while the Axis and spring are made of stainless steel and can withstand temperatures from 14 to 140 °F.
  • Wide applications: Back draught valves can be inserted into ventilation ducts which are flexible or non-flexible. Designed for use with range hoods, bathroom fans, kitchen and other home HVAC applications. Essential for HVAC ventilation.
Check Stock