which size of the screw should be used for fixing to ceiling ?

I would glue they fit well if you cut the right size hole

What is total micemebt

Sorry, don't understand 'micemebt. I found the unit to be well made and not too obtrusive. However, I couldn't fins a way to adjust the inner control disc from below. I could only adjust it from above, which for me is in the loft. I could be missing something. I also bought back draft flaps which I put in line on the exhaust side of the fan. This stops unwanted draft coming in on windy days.

Tried to install today, and I'm stuck. How do you secure the white white metal collar to the steel duct? It just falls straight through

There's a twisting motion to secure to an internal shallow thread if I recall. Then the centre bit can rotate against a screw/nut to enlarge or shrink the hole/gap.

Does this require a fixing collar?

I didn't use one, the 100mm hole was tight enough that it didn't need one

Kair Ceiling Extract Valve 100mm 4 Inch White Coated Metal

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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₨774

Duties & taxes included

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Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌬️ Elevate your space with airflow precision and style!

UK MADE RELIABILITY - Proudly manufactured in the UK, ensuring compliance with Part F Building Regulations and premium craftsmanship.
SEAMLESS INTEGRATION - Flush-fit design with a sleek white powder-coated finish that complements modern interiors.
DURABLE BUILD QUALITY - Constructed from epoxy-coated steel with a galvanised mounting ring for long-lasting performance.
UNIVERSAL COMPATIBILITY - Fits standard 100mm round pipes and 102mm flexible hoses for versatile installation.
PRECISION AIRFLOW CONTROL - Easily adjust and lock airflow with a smooth rotating disc for perfect ventilation.

The Kair Ceiling Extract Valve is a high-quality, white powder-coated metal vent designed for adjustable ceiling air extraction. Compatible with 100mm round pipes and 102mm flexible hoses, it features a rotatable control disc for precise airflow adjustment and a sleek, wipe-clean design ideal for modern interiors. Manufactured in the UK, it meets Part F Building Regulations and offers durable, reliable ventilation solutions for professional and residential spaces.

Specifications

Asin	B004X4RKL6
Batteries Included	No
Batteries Required	No
Best Sellers Rank	16,395 in DIY & Tools (See Top 100 in DIY & Tools) 55 in Registers, Grilles & Vents
Colour	White
Customer Reviews	4.5 4.5 out of 5 stars (194) 4.5 out of 5 stars
Date First Available	19 April 2011
Guaranteed Software Updates Until	unknown
Item Package Quantity	1
Item Weight	259 g
Manufacturer	Kair
Manufacturer Reference	DUCMW104
Material	Epoxy Coated Steel
Part Number	DUCMW104
Product Dimensions	14.5 x 14.5 x 5.99 cm; 258.55 g
Size	100mm Extract

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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₨774

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered 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 Seychelles.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

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Kair Ceiling Extract Valve 100mm - 4 inch White Coated Metal Vent

Description

Specifications

Common Questions