Top 9 Cowled External Vent 100mm UK – Registers, Grilles & Vents

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External Grille with Round Spigot, Air Vent Cover with Backdraught Shutter/Gravity Flap, Ø 100mm / 4 inch Brown Plastic Cowled Ventilation Grille

LIRAST #ad - Designed for use with Ø 100mm / 4 inch round Ducting // External Dimension: 148x153 / 5. 8x6''. Cowl protects against driving Rain and Gusts of Wind Entering Your Property via The Duct Run. Fast and easy to install // just push-fit Duct and Fittings Together // ABS Plastic - Weather and UV Resistant. Damper flap can be closed to help Reduce Unpleasant Odors, Noises, or Draughts Flowing Back Through Your Duct. Round spigot on the back of the grille fits Inside Most Comparable Size Pipes or Hoses // Suitable for Internal or External Use.
BrandLIRAST #ad
ManufacturerLIRAST #ad

2. Kair


4 inch Rear Spigot Stainless Steel Grille with Backdraft Shutter to Protect Against Insects and Wind Noise, Kair Cowled External Vent 100mm

Kair #ad - Ideal for both domestic and commercial extract applications. Ideal for venting tumble dryer, kitchen fans, air conditioning units, bathroom fans, electric dryers or cooker hoods. Superior alternative to plastic cowls and grilles with integral back draft shutter for protection against insects and unwanted sounds. Stainless steel external vent with 96mm rear spigot for use with 100mm ducting systems. Contains a weatherproof seal to eliminate leaks and drafts.
BrandKair #ad
ManufacturerKair #ad
Height12.6 cm (4.96 Inches)
Length15.01 cm (5.91 Inches)
Weight0.32 kg (0.71 Pounds)
Width15.01 cm (5.91 Inches)
Part NumberDUCSS103

3. LbsAMP


LbsAMP Cowled External Square Air Vent Cover 100mm Anti Insect Ventilation Grilles Cover 304 Stainless Steel Grey Wall Vent Cover Outside for Kitchen Ducting Extractor Bathroom Fan Vent Cover

LbsAMP #ad - Quiet and comfortablethe flaps can be closed to help reduce unpleasant odors and airflow back through the ducts, the included rubber seals, in order to maintain a better seal when it is closed, there will still be some sound, and a foam plug is installed inside the hood to effectively reduce noise. Can be used for indoor and outdoor wall mounting.

Stainless steel material the extractor fan vent cover is made of genuine 304 stainless steel material, which is not afraid of sunlight and rust; it is not afraid of wind and rain and is corrosion-resistant. Simply push the exhaust pipe into the outboard exhaust cap port, it is held in place by 4 screws, and installation is done in a few easy steps. Effective ventilation can better protect the safety of you and your family. And other industrial uses. Rugged and durable features effectively extend the service life of the product. Anti-biological technology the extractor vent cover has a built-in flip cover, which can more effectively prevent birds or other pests from entering the duct compared to the vent without a flip cover.

Wide range of uses cowled external square air vent covers are easy to clean and resistant to dirt, offices, universally suitable for vented tumble dryers, unlike ordinary grilles, sheds, bathroom fans, dust builds up and easily clogs over time, kitchen fans, garages, range hoods, camping vehicles, etc. Easy installationthe package includes an external square air vent cover for 100mm ducting with a 15. 5x15.
BrandLbsAMP #ad
ManufacturerWfire #ad
Height13 cm (5.12 Inches)
Length16 cm (6.3 Inches)
Width16 cm (6.3 Inches)
Part NumberZSH089



KEIBIKEIDI Square Cowled External Air Vent Wall Vent 100mm-4 inch Stainless Steel Cushioned Non Return Moving Gravity Flap to Protect Against Insects and Wind Noise for Kitchen Factory Outdoor

KEIBIKEIDI #ad - High quality material-this square wall vents is made of 304 stainless steel, anti-rust, wear-resistant and durable. Function-the cowled external vent interior has stainless steel cushioned non return moving gravity flap to again keep out rain. The vent is installed by inserting the nozzle into the ventilation duct, then wall vent is fixed in place by 4 screws.

The included rubber gasket minimizes noise. Easy installationeasy indoor/outdoor installation. Ideal for variety of industrial uses, garages, sheds, room exhaust and ventilation use. Stainless steel external vent with rear spigot for use with 95 to 100mm ducting systems. The 4 inch exhaust vent is perfect for bathrooms fans, kitchen fan, campers, office, range hood exhaust. Great for home use-there are two pieces of foam stopper in the outdoor exhaust vent to keep the quiet while working.

The metal flap in the vent is sealed from one side to prevent birds, rats, cold air from entering the ventilation system. Superior alternative to plastic cowls and grilles. Widely application especially suitable for use with tumble dryer hose. It can also effectively prevent external rats, insects, birds and disorderly objects from entering, prevent the blockage of the pipeline, and ensure the smooth pipeline.
ManufacturerKEIBIKEIDI #ad
Height10 cm (3.94 Inches)
Length13.8 cm (5.43 Inches)
Width13.8 cm (5.43 Inches)



Ø 100mm / 4'' White Plastic Cowled Hooded Air Ventilation Wind Baffle Wall Grille 4 inch Air Vent Grille Gravity Flap External Ventilation Cover Ducting

EUROPLAST #ad - Exhaust hood made of ABS with flange and umbrella is designed for attaching to the outer wall. Pipe connection diameter: 100 mm, with integrated backflow flap. With connection bracket, ABS plastic, weatherproof. Made in europe - manufacturer Europlast. Bolts to the outer wall or inserted into an identical diameter ventilation pipe.
ManufacturerEUROPLAST #ad
Part NumberCosera



4", Spares2go Stainless Steel Cowled External Extractor Wall Vent Outlet with Cushioned Non Return Flap 100mm

SPARES2GO #ad - Specifications: 100mm 4" diameter - circular pipe / hose fitting, overall outer measurements: 150mm X 150mm 6" Sq, stainless steel. This stylish steel wall extractor hooded vent outlet has an unobtrusive profile, bathroom vents & extractors, air conditioning units, all home wall vents, gas & electric dryers, kitchen fans & vents, a cushioned low noise flap and a weather seal to prevent unwanted leaks and drafts.

Stainless steel square hooded wall vent with non return, screw fixings, cushioned low noise flap, retainer clips and seal. Ideal for all tumble dryer vent pipes / hoses, cooker hood extractors, heat transfer and ventilation systems, as well as a wide variety of industrial uses. Spares2go stainless steel cowled external extractor Wall Vent Outlet with Cushioned Non Return Flap 100mm, 4".
BrandSPARES2GO #ad
ManufacturerSpares2go #ad
Height10.21 cm (4.02 Inches)
Weight0.3 kg (0.66 Pounds)
Width16.79 cm (6.61 Inches)
Part NumberF4S051



Vents 4 inch Black Plastic Cowled Air Vent Wall Grill with 100 mm Rear Spigot Ducting Gravity Flap Grille Cover for Hooded Cooker Hood Outlet Kitchen Bathroom Shed Extractor Fan Ventilation

VENTS UK #ad - When switched off, the grille shuts automatically with gravity and forms a barrier to stop air from entering the ventilation and protect your grille against birds and rodents. Wipe-clean durable design for indoor or outdoor use. Simply push-fit duct and fittings together. The product includes a damper flap to help reduce backdrafts.

Designed to provide optimum airflow performance. Smooth installation process and cleaning through the use of the removable blade and duct cowling baffle. The baffled grille has two advantages: it stops the wind from rattling the shutter and blocks back craft when an extractor fan is switched off. The multifunctional cowled grille is suited for bathroom, air conditioning units, cooker hood, kitchen & wet room extractor fans. This black cowled hooded wall vent baffle with removable single blade back draught shutter is suitable for use with 100 mm 4 inch round ducting and extractor air fan connections.

Suitable to use in compliance with part F building regulations. Gravity-operated back draught shutters supply exceptional protection against the effects of high winds and driving rain. Our air-cowled vent grille cover is manufactured of premium quality antistatic plastic that is temperature and UV-resistant. The grille can be applied as an important part of a ventilation system to terminate any extractor fans, or duct to an external wall.
BrandVENTS UK #ad
ManufacturerVENTS UK #ad

8. WeCooper


WeCooper Cowled External Air Vent Covers 100mm,4 inch 304 Stainless Steel Grille with Backdraft Shutter,Walls Extractor Fan Vent Weatherproof

WeCooper #ad - Please contact us directly with any questions. The included rubber gasket minimizes noise. Ideal for room exhaust and ventilation use. We have a 24-month warranty. Adopting advanced unicase stamping and polished technology. High-quality materialsthe wall air exhaust vent are made of high-quality 304 thick stainless steel material, anti-fracture, are durable, anti-sunsmooth, anti-rust and corrosion resistant.

Easy installationeasy indoor/outdoor installation. The wall vent is fixed in place by 4 screws. Perfect for bathrooms fans, office, garages, campers, kitchen fan, sheds, range hood extractors. You can't go wrong in purchasing this stainless steel air vent cover. Home improvement especially suitable for use with tumble dryer hose.

Superior alternative to plastic cowls and grilles. Available for wall mounting or ceiling mounting. A foam stopper has been installed to the inside of the hood to keep this air vent open and close quietly. The air vent protects against, birds, rats and rain. Your request will be dealt with immediately. Great for home usethe flap in air vent cover is sealed from one side to prevent air entering the ventilation system.
BrandWeCooper #ad
ManufacturerWeCooper #ad

9. AirTech-UK


AirTech-Uk Cowled Outlet Grille 155mm External Dimension Wall Vent with 100mm, 4 inch Round Rear Spigot and Wind Baffle Backdraught Shutter Grey

AirTech-UK #ad - Built to last out of high-quality Polystyrene/Polypropylene plastic material. Just push-fit duct and fittings together. 100mm / 4 inch sys-100 plastic rigid ducting is perfect for DIY and Trade use and provides superior airflow performance and durability v.

Static pressure drop in pascals: 15 l/s = 4. 72 pa - 30 l/s = 17. 18 pa - 60 l/s = 62. 48 pa. Max / min temperature: +60c / -15c. Cowled vent with damper flap 155mm x 155mm external dimension with 100mm round rear spigot. Perfectly suited for ducting your: Bathroom or kitchen extractor fans, Tumble dryers, Cooker hoods, Hydroponics, In-line extract fans, Passive vents.

Cowl protects against driving rain and gusts of wind entering your property via the duct run. Designed for use with 100mm / 4 inch round ducting. Damper flap can be closed to help reduce unpleasant odors, noises, or draughts flowing back through your duct. Free air: 7200mm2.
BrandAirTech-UK #ad
ManufacturerSwiftAir #ad
Height15.24 cm (6 Inches)
Length30.48 cm (12 Inches)
Width22.86 cm (9 Inches)