As an Amazon Associate I earn from qualifying purchases.

Perfectly suited for ducting your bathroom or kitchen extractor fan, In-Line Extract Fans, or Cooker Hood, Hydroponics, Prevent cold air from entering your home through the dryer vent with our inline dryer vent draft blocker.


Compatible with diameter 4 Inch. White plastic extractor fan backdraught Shutter - Male Spigot - External diameter is ~100 mm.






Efficient flow deflector feature increases air flow while cutting noise output. Easy installation: flanges on both the intake and exhaust ends for simple and easy hookup and a cord length of 5. 9 feet for hassle free setup. Moves air through your target location efficiently for optimal ventilation.
1. Deflecto
#ad
Deflecto Dryer Vent, Wide Mouth Galvanized Vent Hood with Pipe, 4” GVH4NR, Silver
#adDeflecto #ad - Vent pipe is 11 3/8" long with a 4” diameter. 4” wide mouth galvanized vent hood and pipe, perfect for dryer or bathroom venting. Vent hood is 5 7/8" wide by 6” tall, and angled out to 3 3/4". Gravity damper helps prevent birds and rodents from entering the home through the dryer vent.More information #ad
Brand | Deflecto #ad |
Manufacturer | DEFLECTO #ad |
Height | 6 Inches |
Length | 14 Inches |
Weight | 0.6 Pounds |
Width | 6 Inches |
Part Number | GVH4NR |
Model | GVH4NR |
More information #ad
2. Repa Market
#ad
Back Draft Blocker, Inline Extractor Fan Vent Back Draught Shutter 4'' Inch, Backdraft Damper Dryer Vent Hose
#adRepa Market #ad - White plastic extractor fan backdraught Shutter - Male Spigot - External diameter is ~ 124mm. Compatible with diameter 4 Inch. Comes with balanced damper fully assembled, stops unpleasant odours, noises, or draughts flowing back through your duct.Perfectly suited for ducting your bathroom or kitchen extractor fan, In-Line Extract Fans, or Cooker Hood, Hydroponics, Prevent cold air from entering your home through the dryer vent with our inline dryer vent draft blocker.
More information #ad
Easy to dIY! This backdraught shutter can be used as a part of a long duct run for a variety of purposes including whole house ventilation, passive stack vent, positive pressure, HVAC, air conditioning, Tumble Dryer Venting, and Heat Recovery Systems.Brand | Repa Market #ad |
Manufacturer | Repa Market #ad |
More information #ad
3. CLABBY ROUND LAKE
#ad
Draft Blocker, Hose Clamps, Prevents Unwanted Drafts in Metal Ducts, CLABBY ROUND LAKE Backdraft Damper Duct for 4" Dryer Duct, Complete with Multi-clamp Band Lock
#adCLABBY ROUND LAKE #ad - Included in this offer are stainless steel multi-clamp band lock hose clamps. The 4" backdraft damper is made out of Galvanized steel with the blades made of aluminum. Your backflow damper prevents the ingress of cold and warm air and wind from entering through the ventilation duct.More information #ad
Your backdraft damper duct dimensions are 4" x 4" x 3. 4". The backdraft shutter is installed so that the damper blades open only in the outflowing air direction.Brand | CLABBY ROUND LAKE #ad |
Manufacturer | CLABBY ROUND LAKE #ad |
Part Number | BD-GAL-4 |
More information #ad
4. Repa Market
#ad
Backdraft Damper Dryer Vent Hose, Back Draft Blocker, Inline Extractor Fan Vent Back Draught Shutter 4'' Inch
#adRepa Market #ad - Easy to dIY! This backdraught shutter can be used as a part of a long duct run for a variety of purposes including whole house ventilation, passive stack vent, HVAC, positive pressure, Tumble Dryer Venting, air conditioning, and Heat Recovery Systems.Compatible with diameter 4 Inch. White plastic extractor fan backdraught Shutter - Male Spigot - External diameter is ~100 mm.
More information #ad
Perfectly suited for ducting your bathroom or kitchen extractor fan, or Cooker Hood, In-Line Extract Fans, Hydroponics, Prevent cold air from entering your home through the dryer vent with our inline dryer vent draft blocker. Comes with balanced damper fully assembled, stops unpleasant odours, noises, or draughts flowing back through your duct.Brand | Repa Market #ad |
Manufacturer | REPA MARKET #ad |
More information #ad
5. Deflecto
#ad
4" Diameter, White BD04, Deflecto Plastic Dryer Vent Draft Blocker
#adDeflecto #ad - Plastic construction; Calcium filled polypropylene has a melting point of 325 degrees F. Prevent cold air from entering your home through the dryer vent with our inline dryer vent draft blocker.More information #ad
Easily attaches to vent pipe and clothes dryer duct. Comes with balanced damper fully assembled. Air flow from the dryer opens up the damper; gravity keeps draft blocker closed when dryer is not in use.Brand | Deflecto #ad |
Manufacturer | Deflecto, LLC #ad |
Height | 2.5 Inches |
Length | 5 Inches |
Weight | 0.2 Pounds |
Width | 5 Inches |
Part Number | BD04 |
Model | BD04 |
Warranty | This is a genuine OEM replacement part. |
More information #ad
6. Scicalife
#ad
Scicalife Adjustable Air Vent Outdoor Dryer Vent Cover Dryer Damper Stainless Steel Oven Air Vent for Dryer Damper Thermostat Oven
#adScicalife #ad - Vent hole size is adjustable, easy and covenient to use. Scope of application: Oven, test chamber, high temperature and constant temperature box etc. Made of high quality materials for durable long time use.More information #ad
Perfectly fits and replaces original parts so you can easily install it within few minutes. Easy opening and closing for better airflow control, quiet and smooth control lever, noise free components.Brand | Scicalife #ad |
Manufacturer | Scicalife #ad |
Height | 1.18 Inches |
Length | 3.74 Inches |
Weight | 0.44 Pounds |
Width | 3.74 Inches |
Part Number | 03D7NC12392MUS7A5 |
Model | 983DGM0001KFIA160PY |
More information #ad
7. Deflecto
#ad
Deflect-O Jordan 4 in. Dia. x 10 in. L Galvanized Steel Duct
#adDeflecto #ad - The package width of the product is 15. 75 inches. Country of origin: uNITED STATES. The package length of the product is 11. 43 inches. The package height of the product is 26. 67 inches.More information #ad
Brand | Deflecto #ad |
Manufacturer | DEFLECTO #ad |
Height | 4 Inches |
Length | 11.5 Inches |
Weight | 0.6 Pounds |
Width | 6.5 Inches |
Part Number | DGT34 |
Model | DGT34 |
More information #ad
8. XJJZS
#ad
XJJZS 8 inch Silent Household Exhaust Fan Air Grille Wall Window Extractor Ceiling Fan for Toilet Bathroom Kitchen Ventilation Vents
#adXJJZS #ad - Product name: ventilation fan. Shape: Square. Material: ABS. 1 ventilation fan with attachment. Package Included:.More information #ad
Brand | XJJZS #ad |
Manufacturer | zjjsx #ad |
Weight | 0 Pounds |
Part Number | zjjsx-123 |
More information #ad
9. XJJZS
#ad
Or Garage 4 Inches 150 150mm Glass Ventilator, XJJZS Cable Exhaust Fan,Vent Fan for Home Attic, Shed
#adXJJZS #ad - Beautiful thin body: the overall design of the fuselage is very thin, making the architectural design more comfortable and the space beautiful and practical.More information #ad
Nput power: 4 inches12w. Low noise and energy saving: Work and sleep, always quiet, make life more comfortable. Applicable scenarios: living room, bedroom, bathroom, kitchen and small room. Installation dimensions: 4 inches110mm.Brand | XJJZS #ad |
Manufacturer | zjjsx #ad |
Weight | 0 Pounds |
Part Number | zjjsx-123 |
More information #ad
10. XJJZS
#ad
XJJZS 4 Inch 195 CFM Inline Duct Ventilation Fan Vent Blower for Grow Ten
#adXJJZS #ad - Versatile applications: use anywhere that would benefit from improved air flow to reduce humidity, greenhouses, clear the air and lower temperatures in grow rooms, basements or kitchens。.Efficient flow deflector feature increases air flow while cutting noise output. Easy installation: flanges on both the intake and exhaust ends for simple and easy hookup and a cord length of 5. 9 feet for hassle free setup. Moves air through your target location efficiently for optimal ventilation.
More information #ad
Effective ventilation: powerful blower with a fan speed of 2500 RPM for an air flow of 195 CFM. Low noise level: fitted with a flow deflector that concentrates the fan stream and cuts turbulent kinetic energy to reduce sound output to just 30 dB. Efficient design: lightweight, compact fan takes up minimal space; ideal for applications where larger fans just won’t fit.Brand | XJJZS #ad |
Manufacturer | zjjsx #ad |
Weight | 2.65 Pounds |
Part Number | zjjsx-123 |
More information #ad