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

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Kair Ceiling Extract Valve 125mm - 5 inch White Coated Metal Vent

Kair Ceiling Extract Valve 125mm - 5 inch White Coated Metal Vent

Product ID: 60919461

Details

Brand
Kair
Exterior finish
Powder-Coated
Global Trade Identification Number
Inlet connection size
5 Inches
Inlet connection type
Threaded
Item dimensions L x W x H
16.5 x 16.5 x

🎨White powder-coated metal finish

🔇Whisper-quiet airflow control

⚙️125mm adjustable spigot fit

R1000

Duties & taxes included

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌬️ Elevate your air game with silent, sleek, and smart ventilation!

DURABLE CLEANABLE - Epoxy-coated steel ensures long-lasting durability and a wipe-clean surface for effortless maintenance.
UNIVERSAL COMPATIBILITY - Fits standard 125mm round pipes and 127mm flexible hoses for versatile installation.
PRECISION AIRFLOW CONTROL - Easily adjust and lock airflow with a smooth rotating disc for perfect ventilation.
UK MADE QUALITY ASSURANCE - Crafted in the UK with compliance to Part F Building Regulations for trusted performance.
SEAMLESS CEILING INTEGRATION - Flush-fit design with a sleek white powder-coated finish that blends into modern interiors.

The Kair Ceiling Extract Valve is a high-quality, white powder-coated metal vent designed for adjustable ceiling air extraction. Compatible with 125mm round pipes and 127mm flexible hoses, it features a rotating control disc for precise airflow adjustment and a lock nut for secure settings. Its flush, wipe-clean design fits seamlessly into modern interiors, offering whisper-quiet operation and compliance with UK building standards. Made in the UK, it ensures durability and versatile installation for professional-grade ventilation solutions.

Specifications

Asin	B004X4SC90
Batteries Included	No
Batteries Required	No
Best Sellers Rank	10,708 in DIY & Tools (See Top 100 in DIY & Tools) 210 in Bathroom Hardware
Colour	White
Customer Reviews	4.4 4.4 out of 5 stars (280) 4.4 out of 5 stars
Date First Available	19 April 2011
Item Model Number	5060272541408
Item Weight	358 g
Manufacturer	Kair
Material	Epoxy Coated Steel
Number Of Pieces	1
Part Number	DUCMW124
Product Dimensions	16.51 x 16.51 x 5.99 cm; 358.34 g
Size	125mm 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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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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1 month ago

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R1000

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

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

3 weeks ago

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