Top 10 100mm External Vent Grill UK – Registers, Grilles & Vents

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1. Blauberg

Slim Black Wall Vent Square Grille Cover with Insect Screen Fly Mesh for up to 100 mm Vents 4 Fresh Air Flow Outlet or Inlet Duct to fit 3 or 4-inch Ventilation Louvre Outdoor External Grill

Blauberg - The product maintains the natural circulation of the air between the interior-exterior premises. Easy instlalation: installation is simple and convenient due to its easy flush fit onto an external wall as the grill cover does not have a circular connector. Size: the small size grille is suitable for all exhaust applications to cover up to 100mm 4 inch duct connections.

The product is equipped with an insect mesh flyscreen which averts insects from entering. Weather resistant external louvred vent grill is ideally suited to cover any external walls, roof soffits or ventilation holes to regulate the air flow. Application: our ventilation slim grille comes with a removable core for easy cleaning and installation. Please see photos. Suitable to use in compliance with Part F Building Regulations. External dimension of this grille is 151 x 156.

Ideal for all tumble dryer vent pipes / hoses, gas & vents, bathroom vents & electric dryers, kitchen fans & extractors, heat transfer and ventilation systems, all home wall vents, cooker hood extractors, air conditioning units, as well as a wide variety of industrial uses. Once fitted, you can be sure that the moisture caused by your tumble dryer will be vented outside and won't build up within your home. Material: slim flush mounted decorative grille is made of highly durable UV protected Black plastic.
BrandBlauberg
ManufacturerBlauberg

2. Merriway

Extractor Fan Wall Outlet, Merriway BH05070 100 mm/ 4 inch White External Gravity Air Vent Duct Grill

Merriway - Suitable for exterior use only. Manufacturer: Bulk Hardware Limited. Can be used on round or flat channel ducting. Wall vent with gravity flaps and weather sill, 140mm square. Use as part of low profile 4 inch ducting system.
BrandMerriway
ManufacturerBulk Hardware Limited
Height15.8 cm (6.22 Inches)
Length14.8 cm (5.83 Inches)
Weight0.08 kg (0.18 Pounds)
Width3.4 cm (1.34 Inches)
Part NumberBH05070
ModelBH05070
WarrantyNo guarantee.

3. Blauberg

Blauberg Brown Gravity Grille 100mm, 4 inch External Ducting Air Vent with Round Spigot and Non-Return Gravity Shutters Ceiling Ventilation Grill Extractor Fan Cover for Cooker Hood Venting

Blauberg - Easy to install, hydroponics fan, just push-fit duct and fittings together. This grille can be used as a part of a long ductwork run for a variety of purposes including whole house ventilation, air conditioning, positive Input, passive ventilation, HVAC, and heat recovery systems.

Gravity flap - no need for springs that could break. Suitable to use in compliance with part F building regulations. Perfectly suited bathroom or kitchen extractor fan, or in-line extract fan. Stops unpleasant odours, noises, or draughts flowing back through your duct. Non-return shutter flaps close automatically when not in use. Gravity operated flaps that close when Not in use. 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. Designed to terminate your extract duct to an external wall.
BrandBlauberg
ManufacturerBlauberg Fans
Height15 cm (5.91 Inches)
Length14 cm (5.51 Inches)
Weight0.1 kg (0.22 Pounds)
Width2 cm (0.79 Inches)
Part NumberDECOR 155X155/100G BROWN
ModelDECOR 155X155/100G BROWN
Warranty5 years.

4. Armar Trading LTD

Air Vent Grill Cover Gravity FlapDucting 100mmBrown External Ventilation Cover

Armar Trading LTD - High quality ABS Plastic. Dimension: a-190mm, c-130mm, b-72mm, Ø- 100mm. Brown air vent Cover with Gravity Flap. Simple To Fit. Comes with 4 fixings and 4 Screw Cover Caps.
BrandArmar Trading LTD
ManufacturerArmar Trading LTD
Height1 cm (0.39 Inches)
Length1 cm (0.39 Inches)
Width1 cm (0.39 Inches)
Part NumberKO100-30BR
Modelx

5. SENRISE

Hood Exhaust 100mm, Stainless Steel Air Vent SENRISE Ventilation Grill Covers Metal Round Wall Vent Gravity Flap Cover for The External Wall Exhaust, Fresh Air

SENRISE - Made of high quality 304 stainless steel, high quality, thick, not easy to deform, anti-rust. Barb design, barbs can be reversed to seize the pipe, so that the tube is not easy to fall off, easy to install. Built-in stainless steel grille, effectively isolate debris and dust, to prevent pests into the house, to avoid blocking the channel. Widely use for all kinds of home pipe ventilation and industrial use. Package contant: 1Pcs Air Vent Grill.
BrandSENRISE
ManufacturerSENRISE
Part NumberHA7426B

6. VENTS UK

Slim Black Wall Vent Square Grille Cover with Insect Screen Fly Mesh for up to 100 mm Vents 4 Fresh Air Flow Outlet or Inlet Duct to fit 3 or 4-inch Ventilation Louvre Outdoor External Grill

VENTS UK - Weather resistant external louvred vent grill is ideally suited to cover any external walls, roof soffits or ventilation holes to regulate the air flow. External dimension of this grille is 151 x 156. Suitable to use in compliance with Part F Building Regulations. The product is equipped with an insect mesh flyscreen which averts insects from entering.

Size: the small size grille is suitable for all exhaust applications to cover up to 100mm 4 inch duct connections. Application: our ventilation slim grille comes with a removable core for easy cleaning and installation. The product maintains the natural circulation of the air between the interior-exterior premises. Once fitted, you can be sure that the moisture caused by your tumble dryer will be vented outside and won't build up within your home. Ideal for all tumble dryer vent pipes / hoses, air conditioning units, bathroom vents & electric dryers, cooker hood extractors, heat transfer and ventilation systems, kitchen fans & extractors, all home wall vents, gas & vents, as well as a wide variety of industrial uses.

Material: slim flush mounted decorative grille is made of highly durable UV protected Black plastic. Please see photos. Easy instlalation: installation is simple and convenient due to its easy flush fit onto an external wall as the grill cover does not have a circular connector.
BrandVENTS UK
ManufacturerVENTS UK

7. NESVENT

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

NESVENT - Just push-fit duct and fittings together. Damper flap can be closed to help reduce unpleasant odors, noises, or draughts flowing back through your duct. You will need to click fit it back into place. This is to enable easy fitting into the back plate. Cowled vent with damper flap 155mm x 155mm external dimension with 100mm round rear spigot. Designed for use with 100mm / 4 inch round ducting. Cowl protects against driving rain and gusts of wind entering your property via the duct run. Note: the cowl comes with slightly bent sides.
BrandNESVENT
ManufacturerNESVENT

8. Fantronix

4 inch Light Weight Push Fit Extractor Fan Gravity Flappy Grill External Wall Air Vent Ventilation Plastic 4" Will fit All 100mm Universal Pipes

Fantronix - Suitable to use in compliance with Part F Building Regulations. This grille can be used as a part of a long ductwork run for a variety of purposes including whole house ventilation, air conditioning, positive input, HVAC, passive ventilation, and Heat Recovery Systems.

Gravity flap - no need for springs that could break. Easy to install, just push-fit duct and fittings together. Non-return shutter flaps close automatically when not in use. White 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. Stops unpleasant odours, noises, or draughts flowing back through your duct. Perfectly suited bathroom or Kitchen extractor fan, Hydroponics fan or In-Line Extract Fan.
BrandFantronix
ManufacturerFantronix
Part NumberOLD0114-S-152
ModelOLD0114-S-152

9. VENTS UK

Vents 4 inch Black External Gravity Grille Air Vent Cover with Removable Blades 100 mm Extractor Fan Back Draught Shutter Covers Ducting Tumble Dryer Bathroom Outside Wall Ventilation Hose Duct Grill

VENTS UK - This is designed to protect your ventilation duct from unpleasant odours, or vermin when the ventilation unit is not in operation. The gravity outlet is manufactured in compliance with the Building Regulations: Approved Document F. Simple and secure installation.

The item is made from premium quality plastic. 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. The overall external dimensions of the grille - 155 mm x 155 mm with 4" / 100mm dia duct connection size for outdoor use. The grille has three non-return gravity flap outlets. Just push-fit duct and fittings together. Airflow operated gravity shutter is a rain and weatherproof vent finished in black colour.

If required, seal using a method of your choice Popular options include Mastic Sealant Poly Cement or Tape. This gravity grille cover can be used as a part of a long ductwork run for a variety of purposes: whole house ventilation, passive ventilation, conditioning ducting, positive input, Heat Recovery Systems and to cover Bathroom, HVAC, Kitchen air conditioning fans. The shutter works by extract air opening the blades to allow air to pass.
BrandVENTS UK
ManufacturerVENTS UK

10. Kair

Kair White Louvred Wall Vent Grille 155mm External Dimension with Flyscreen and Round 100mm, 4 inch Rear Spigot

Kair - Fits inside kair 100mm round female duct pipe part: dUCVKC250 or 102mm flexible hose Part: DUCP0092/102/35. 155mm x 155mm external dimension with 4 inch / 100mm round male rear spigot on the back of the grille can be cut off if flat surface preferred.

Perfectly suited bathroom or Kitchen extractor fan vent, Hydroponics fan, or In-Line Extract Fan. Louvre can be flicked open with flat head screwdriver for ease of installation and to allow cleaning of insect screen. White plastic ducting air outlet / inlet square grille with fixed louvres and anti insect mesh / flyscreen. Easy to install, just push-fit duct and fittings together.
BrandKair
ManufacturerKair
Height15.01 cm (5.91 Inches)
Length3.99 cm (1.57 Inches)
Weight0.1 kg (0.22 Pounds)
Width15.01 cm (5.91 Inches)
Part NumberDUCVKC244F/S