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Best Tunnel Ventilation Ducts

Draft Blocker 6 Inch - Backdraft Damper - Draft Stopper - Backflow Preventer - Vent Deflector 6 Inch

  • Back draft damper is made for insertion into inch ventilation ducts. The backflow damper RKI opens and closes automatically. It has a strong spring....
  • Damper has 2 valves, designed for use in air conditioners (AC), dryers, exhaust, extractor or range hoods, heating ducts, vents and other HVAC....
  • INSTALLATION: The backflow flap is installed by inserting it into the ventilation pipe until it stops. The position of the spring should be horizontal....
  • The backflow flap opens and closes automatically at low air volumes. It has a smooth-running spring and an internal foam strip to keep the blades from....
  • Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. Cannot be used with plastic ducts as the sizes are....
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Draft Blocker 4 Inch - Backdraft Damper - Draft Stopper - Backflow Preventer - Vent Deflector (4'' Inch)

  • Back draft damper is made for insertion into inch ventilation ducts. The backflow damper RKI opens and closes automatically. It has a strong spring and can be installed either horizontally or vertically. The flap is suitable for retrofitting, since it is completely inside the duct.
  • Damper has 2 valves, designed for use in air conditioners (AC), dryers, exhaust, extractor or range hoods, heating ducts, vents and other HVAC applications.
  • INSTALLATION: The backflow flap is installed by inserting it into the ventilation pipe until it stops. The position of the spring should be horizontal for horizontal installations so that it can open and close optimally. The Backdraft shutter is installed so that the damper blades open only in the outflowing air direction..
  • The backflow flap opens and closes automatically at low air volumes. It has a smooth-running spring and an internal foam strip to keep the blades from rattling and can be installed horizontally or vertically.
  • Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. Cannot be used with plastic ....
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Draft Blocker - 4'' Inch Backdraft Damper Duct - Draft Stopper - Backflow Preventer - Inline Fan Vent - Vent Deflector (4'' Inch)

  • Back draft damper is made for insertion into inch ventilation ducts. The backflow damper RKI opens and closes automatically. It has a strong spring and can be installed either horizontally or vertically. The flap is suitable for retrofitting, since it is completely inside the duct.
  • Damper has 2 valves, designed for use in air conditioners (AC), dryers, exhaust, extractor or range hoods, heating ducts, vents and other HVAC applications.
  • INSTALLATION: The backflow flap is installed by inserting it into the ventilation pipe until it stops. The position of the spring should be horizontal for horizontal installations so that it can open and close optimally. The Backdraft shutter is installed so that the damper blades open only in the outflowing air direction..
  • The backflow flap opens and closes automatically at low air volumes. It has a smooth-running spring and an internal foam strip to keep the blades from rattling and can be installed horizontally or vertically.
  • Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. Cannot be used with plastic ....
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4 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector Silver

  • 【Material】The 4 inch backdraft damper is made of a Galvanized steel, the flap leaves are made of aluminum, while the Axis and spring are made of stainless steel..
  • 【Installation】The backdraft damper is installed by pushing it into the ventilation pipe as far as it will go. The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally. This also applies to the vertical installation..
  • 【Function】This airflow regulating backdraft shutter fits over the TD lip and is designed to improve ventilation by preventing air from re-circulating when the fans are not in use..
  • 【Wide Application】 These backdraft dampers can be widely used in ACs, exhaust fans, extractors, range hoods, heating ducts, vents and other residential, commercial and industrial applications..
  • 【Note】Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. Cannot be used with plastic ducts as the sizes are different..
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4 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Vent Deflector (4 in)

  • 【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..
  • 【Installation】The backdraft damper is installed by pushing it into the ventilation pipe as far as it will go. The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally. This also applies to the vertical installation..
  • 【Function】This airflow regulating backdraft shutter fits over the TD lip and is designed to improve ventilation by preventing air from re-circulating when the fans are not in use..
  • 【Wide Application】 These backdraft dampers can be widely used in ACs, exhaust fans, extractors, range hoods, heating ducts, vents and other residential, commercial and industrial applications..
  • 【Note】Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. Cannot be used with plastic ducts as the sizes are different..
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Panasonic FV-40VQ4 WhisperCeiling 380 CFM Ceiling Mounted Fan , White

  • Quiet air flow: Designed for light commercial applications, this powerful yet quiet ventilation fan moves 390 CFM of air at 3.0 sones.
  • 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.
  • Easy to install: Designed for 6" ducts. The double hanger-bar system (expandable up to 24") is ideal for positioning the fan exactly where you want it.
  • Clean air: Panasonic ventilation fans will increase your air quality, eliminating humidity, mold, mildew, and other air pollutants from any room.
  • Code compliant: This product is ENERGY STAR 3.0 certified and complies with ASHRAE 62.2, LEED, California Title 24 and WA Ventilation Codes.
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Kitchen Ventilation Fan Sound

  • HIGH-CAPACITY FAN: Ventilation fan operates on a single, impact-resistant centrifugal blower wheel with 308 CFM, 2.9 Sones, and 120V for a powerful....
  • HEAVY-DUTY: Housing is constructed of 20-gauge galvanized steel and features an 8" round metal duct connector to provide long-lasting use.
  • CUSTOMIZATION: Fan ducts horizontally, vertically, or in-line with a separate adapter for your convenience.
  • EFFECTIVE: Motors are permanently lubricated to provide continuous and quiet operation.
  • IDEAL FOR LARGE ROOMS: High-capacity ventilation fan is great for conference rooms, public restrooms, and other areas in commercial buildings that....
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Panasonic FV-1115VKL2 WhisperGreen Select Ventilation Fan with Light, 110-130-150 CFM

  • QUIET AIR FLOW: Designed for light commercial applications, this powerful yet quiet ventilation fan moves 290 CFM of air at 2.0 sones..
  • 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..
  • EASY-TO-INSTALL: Designed for 6" ducts. The double hanger-bar system (expandable up to 24") is ideal for positioning the fan exactly where you want it..
  • CLEAN AIR: Panasonic ventilation fans will increase your air quality, eliminating humidity, mold, mildew, and other air pollutants from any room..
  • CODE COMPLIANT: This product is ENERGY STAR certified and complies with ASHRAE 62.2, LEED, IAP, EarthCraft, California Title 24 and WA Ventilation Codes..
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Broan-NutoneL300High Capacity Ventilator Fan, Commercial Exhaust Fan, 2.9 Sones, 120V, 308 CFM (Renewed)

  • HIGH-CAPACITY FAN: Ventilation fan operates on a single, impact-resistant centrifugal blower wheel with 308 CFM, 2.9 Sones, and 120V for a powerful and effective performance.
  • HEAVY-DUTY: Housing is constructed of 20-gauge galvanized steel and features an 8″ round metal duct connector to provide long-lasting use.
  • CUSTOMIZATION: Fan ducts horizontally, vertically, or in-line with a separate adapter for your convenience.
  • EFFECTIVE: Motors are permanently lubricated to provide continuous and quiet operation.
  • IDEAL FOR LARGE ROOMS: High-capacity ventilation fan is great for conference rooms, public restrooms, and other areas in commercial buildings that require ongoing ventilation.
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Broan-NuTone L300 High Capacity Ventilator Fan, Commercial Exhaust Fan, 2.9 Sones, 120V, 308 CFM, White

  • HIGH-CAPACITY FAN: Ventilation fan operates on a single, impact-resistant centrifugal blower wheel with 308 CFM, 2.9 Sones, and 120V for a powerful and effective performance.
  • HEAVY-DUTY: Housing is constructed of 20-gauge galvanized steel and features an 8" round metal duct connector to provide long-lasting use.
  • CUSTOMIZATION: Fan ducts horizontally, vertically, or in-line with a separate adapter for your convenience.
  • EFFECTIVE: Motors are permanently lubricated to provide continuous and quiet operation.
  • IDEAL FOR LARGE ROOMS: High-capacity ventilation fan is great for conference rooms, public restrooms, and other areas in commercial buildings that require ongoing ventilation.
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Tunnel for Toddlers 1-3, Play Tunnel Sensory Toys for 1 Year Old Boy Girl Babies Kids, Great for Motor Function

  • This tunnel for toddlers is excellent for muscle and motor skill development. Crawling through the tunnel can help to improve physical strength, mobility, motor functions, etc. It is such an important developmental skill for you child even after they start walking..
  • Collapsible design: this tunnel for kids can be set up and take down in seconds. Folds flat for space saving storage.
  • Quality construction designed for rugged play: the metal wire at the opening of the tunnel is sealed with thick rubber tube to prevent the metal wire from sticking out..
  • Measurement: length: 59 inches. Diameter: 18 inches. Can be extended with another tunnel or playhouse for infinite fun..
  • Mesh Netting Design: almost all small children have anxiety about being confined in small and enclosed spaces. Our mesh design provides great air ventilation and allow your little one to look out and be seen inside..
  • Not only suitable as infant, baby toys 12-18 months, montessori toys for toddlers, it’s also perfect as gifts for boys and girls 1, 2, 3 years old..
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Panasonic FV-10NLF1E WhisperLine Remote Mount In-Line Spot Ventilation Fan, Air Flow

  • Quiet Air Flow: Designed for residential or light commercial applications, this powerful ventilation fan can exhaust air from multiple points at 1.0 sones.
  • 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.
  • Features five positions for installation with included joint, truss, and suspension brackets.
  • Clean Air: Panasonic ventilation fans will increase your air quality, eliminating humidity, mold, mildew, and other air pollutants from any room.
  • Code Compliant: This product is ENERGY STAR certified and complies with ASHRAE 62.2, LEED, California Title 24, and Washington VIAQ codes and standards.
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VIVOSUN Air Filtration Kit, 6” 390 CFM Inline Ventilation Fan with Speed Controller, 6” Black Carbon Filter and 8’ of Ducting for Grow Tent, Planting room, Air Circulation

  • Perfect Combination: Three-part system includes every part you need to get set up.
  • It is primarily used in various air circulation and ventilation projects to move and transport air.
  • Energy-Efficient Ventilation: The inline duct fan helps solve ventilation problems.
  • This fan is durable and runs smoothly and quietly.
  • Variable speed controller facilitates fan speed adjustment.
  • Excellent Odor Control: The porous activated carbon with 1050+ RC 48 Australia Virgin Charcoal helps eliminate some of the most undesirable, pungent smells and particulates for indoor grow tents.
  • Perfect Connector: The VIVOSUN ducts are made of high-quality aluminum.
  • Features a double layer of protection with PET thermoplastic.
  • Comes with two heavy-duty stainless clamps.
  • Cost Effectiveness: This combination is not only suitable for green house air circulation, but also for bathroom ventilation, stove exhaust, kitchen cooking exhaust, etc..
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