Top 8 100mm Backdraft Shutter UK – Ducting

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1. Kair

4 inch Non-Return Damper Flap to Connect Duct Pipe or Flexible Ducting Hose, Kair Connector with Backdraught Shutter 100mm

Kair - Genuine kair product & covered by the Kair manufcturers 100% satisfaction guarantee for your peace of mind. 100mm / 4 inch plastic ducting connector with inline backdraught shutter / gravity damper flap. Will fit inside 100mm round pipe or 102mm flexible hose and can be used to join multiple lengths of pipe together to form a long duct run. Perfectly suited for ducting your tumble Dryer, In-Line Extract Fans, Hydroponics, Bathroom or Kitchen extractor fan, or Cooker Hood and other ventilation applications. Stop smells and prevent cold air coming through your extract fan or ducting.
Height5.79 cm (2.28 Inches)
Length10.31 cm (4.06 Inches)
Weight0.04 kg (0.09 Pounds)
Width10.31 cm (4.06 Inches)
Part NumberDUCVKC303


Ducting Pipe Non Return Valve 100mm Round Duct Rigid Tube Connector with Shutter Extractor Fan Backdraft Damper Stopper KO100-22

MKK-SHOP - Equipped with a back draft damper for back flow prevention. Connector fits into Ø100mm round pipe ducting. Lightweight Material: PVC. Quick and easy fit.
ManufacturerArmar Trading LTD
Height1 cm (0.39 Inches)
Length1 cm (0.39 Inches)
Width1 cm (0.39 Inches)
Part NumberA289a_SML

3. calimaero

Backdraft Shutter 100mm Calimaero™ SEAL 4 inch Backdraught Shutter for all 100 mm Pipes Cooker Hood Exhaust Gravity Flap Made in Germany Inline Backdraught Shutter

calimaero - You will be very satisfied with the quality, functionality, through your dryer, value and the easy installation of this backdraft shutter 100mm!. International products have separate terms, are sold from abroad and may differ from local products, and language of product, age ratings, including fit, labeling or instructions. Backdraught damper dn 100 does what it was developed for. The backdraft shutter prevents cold air from flowing back into your house or apartment, bathroom fan or grow tent.


Back Draft, Backdraft Shutter/Coupler, 1 Pack Fans, 100mm 4'' Round PVC, for Ducting, Vent

VENTS - Reduce noise's and smells from entering through ducting. Can be fitted Verticaly or Horizontaly. Prevent animals entering through the ducting. Will reduce heat loss when room is not being extracted.


Vents 4" Cotswold Stone Ducting Inlet and Outlet Grille with Wall Gravity Flaps 100mm Extractor Fan Backdraft Shutter Extractor Fan Bathroom Pipe Cover Bedroom Living Room Positive Input Ventilation

VENTS UK - The grille has three non-return gravity flap outlets. If required, seal using a method of your choice Popular options include Mastic Sealant Poly Cement or Tape. The gravity outlet is manufactured in compliance with the Building Regulations: Approved Document F.

Airflow operated gravity shutter is a rain and weatherproof vent finished in brown colour. The shutter works by extract air opening the blades to allow air to pass. When the extractor fan or ventilation system is not in use, noises and to prevent backdraught air or rain penetration, and entry of objects, the grille shutter flaps close automatically. Simple and secure installation. This gravity grille cover can be used as a part of a long ductwork run for a variety of purposes: whole house ventilation, positive input, Heat Recovery Systems and to cover Bathroom, HVAC, passive ventilation, conditioning ducting, Kitchen air conditioning fans.

The overall external dimensions of the grille - 155 mm x 155 mm with 4" / 100 mm dia duct connection size for outdoor use. The item is made from premium quality plastic. Just push-fit duct and fittings together. This is designed to protect your ventilation duct from unpleasant odours, or vermin when the ventilation unit is not in operation.
ManufacturerVENTS UK

6. Fantronix

4-inch Push Fit PVC Gravity Operated Bathroom Ventilation Extractor Fan Not Return Air Valve Back-Draft Shutter Outlet Damper Grille 100mm Whole House Ventilation

Fantronix - Stops unpleasant odours, noises, or draughts flowing back through your duct. Easy to install, just push-fit duct and fittings together. Non-return shutter flaps close automatically when not in use.

Gravity flap - no need for springs that could break. This grille can be used as a part of a long ductwork run for a variety of purposes including whole house ventilation, air conditioning, passive ventilation, HVAC, positive input, and Heat Recovery Systems. Brown plastic ducting air inlet / air outlet with Gravity Shutters - 4 inch / 100mm round male spigot on the back of the grille for indoor or outdoor use. Suitable to use in compliance with Part F Building Regulations. Perfectly suited bathroom or Kitchen extractor fan, Hydroponics fan or In-Line Extract Fan.
Part NumberOLD0114-S-135

7. Armar Trading LTD

Extractor Fan Non Return Valve Ducting Pipe Backdraft Shutter Wind Shutter ZZ 100mm / 4"

Armar Trading LTD - But at the same time do not adversely affect fan capacity in a significant way. Non-return valves ensure that the air flows in one direction only. 100mm / 4" non-return Valve for Extractor Fans. Backdraft Shutter.
BrandArmar Trading LTD
ManufacturerArmar Trading LTD
Part NumberKebonds

8. zkm

Zkm Pipe Draft Blocker Backdraft Damper Ventilation Duct Inline Extractor Fan Vent Back Draught Shutter 100mm

zkm - For use in ventilation applications kitchens, toilets, bathrooms & hydroponics. Our brand is dedicated to provide high standard products,we have confidence in our products and provide after sale support, if you have products quality issues, please contact us. Designed to provide anti back draught, and fit in between Solid Plastic Ducting, Flexible Ducting. Quality guarantee: best quality. Male backdraft shutter is lightweight & compatible with ducting. Gravity shutter flap, effectively prevent the wind back flow.
Part Number1AA701067-100_zkm