How do you get the cover off to access the fixing points?

Put a small screwdriver blade to each side in turn and apply a small amount of pressure and it will ease off

So I fix things with screws and rawl plugs every day, but this seems to be a sealed unit, I.e. I can't separate the bracket to fix it to the wall.

The one I bought had top and bottom screw holes and snap caps and was easy to fit. Good luck.

Which size is best to receive a 117mm (4") extract plastic pipe?

You want the 100mm option for 4 inch good quality grills I have 4 of them in total

Can it be used inside the house

Amazingly, the Amazon ad shows it being used outside. Remember to have the louvres angled down when outside and up when inside. Cheers.

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Blauberg UK DECOR

Product ID: 47881458

Details

Brand
Blauberg UK
Colour
Black
Electric fan design
Exhaust Fan
Mounting type
Wall Mount
Power source
Corded
Product dimensions
10.2D x 38.1W

🦟Built-in insect mesh

🌧️Louvered blades repel rain & wind

🛠️100mm push-fit duct size

P1049

Duties & taxes included

In stock

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Description

🌬️ Elevate your airflow game with Blauberg UK DECOR – where style meets function!

INSECT FREE VENTING - Integrated mesh keeps bugs out without compromising airflow.
DURABILITY GUARANTEED - 5-year warranty ensures long-lasting performance and peace of mind.
EFFORTLESS INSTALLATION - Push-fit design means no hassle, just snap and secure.
VERSATILE VENT SOLUTION - Perfect for bathrooms, kitchens, hydroponics, or inline extractor fans.
WEATHER RESISTANT SHIELD - Louvered blades and UV protection keep your vent pristine rain or shine.

The Blauberg UK DECOR is a sleek, black 100mm louvered wall vent grille designed for easy push-fit installation on external walls. Featuring UV protection, insect mesh, and weather-resistant blades, it ensures efficient ventilation for bathrooms, kitchens, and hydroponic setups. Backed by a 5-year warranty, it combines durability with modern touch control for a seamless, high-velocity exhaust solution.

Specifications

ASIN	B06W9NV4FP
Best Sellers Rank	97,212 in DIY & Tools ( See Top 100 in DIY & Tools ) 451 in Registers, Grilles & Vents
Blade Length	100 Millimetres
Blade Material	Plastic
Brand Name	Blauberg UK
Collection Name	Fans
Colour	Black
Control Method	Touch
Controller Type	Touchpad Control
Customer Reviews	4.5 4.5 out of 5 stars (851)
Electric Fan Design	Exhaust Fan
Finish Type	Black, standard finish
Form Factor	flat or rectangular
Global Trade Identification Number	05060503627352
Included Components	no_components
Indoor Outdoor Usage	Indoor
Installation Type	DIY - Push-fit and Wall Mount
Is Electric	Yes
Is Product Cordless	No
Item Dimensions D x W x H	10.2D x 38.1W x 40.6H centimetres
Item Type Name	Louvred Wall Vent Grille 100mm - 4 inch Black with Flyscreen for Internal or External use
Item Weight	0.1 Kilograms
Manufacturer	Blauberg Fans
Material	Plastic
Model Name	DECOR
Model Number	DECOR 155X155/100S BLACK
Mounting Type	Wall Mount
Number of Packs	1
Part Number	DECOR 155X155/100S BLACK
Power Source	Corded Electric
Product Warranty	5 years.
Recommended Uses For Product	Exhausting, Ventilating
Reusability	Reusable
Room Type	Bathroom, Kitchen
Size	100mm
Special Features	High Velocity, Waterproof
Style	100mm
Switch Type	Electronic Touch Control
Theme	Ventilation
Unit Count	1.0 count

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P1049

Duties & taxes included

In stock

Sold byAmazon BotswanaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Botswana.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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