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Product Details

Fits into ceiling and connects to hose or pipe. Can be used with in-line fan or multi room extract system. Adjustable air flow.

Technical Specification
Manufacture ID VKC306F
Size (mm) 100
Diameter (mm) 100
Size (Inches) 4
Delivery details
Order value: Under £10 £10 & over
Express usually Next Business Day before 6pm £5 Free
Turbo usually Next Business Day before 12 noon £10 £5
Remote areas standard delivery (2-4 days) £5 Free
Order Value: Under £25 Over £25 but less than £75 £75 & Over
£10 £5 Free

Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

More about Delivery & Returns
Click & Collect details
If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 5 minutes later.
  • Ensure you check stock is available for collection at your chosen branch.
  • Check branch opening hours to ensure you have sufficient time to collect.
  • For items not available for same day collection, place order before 8pm Mon-Sat (4pm Sun) and you can collect Next Business Day (Mon-Fri) after 3pm.
  • If we have your mobile number, we’ll send you a text when your order is ready to collect.
White PVC Ceiling Vent Diffuser / Valve 100mm is rated 4.5 out of 5 by 10.
Rated 4 out of 5 by from No instructions! As with other reviews the centre part is skew-wiff which isn’t a major problem but there’s no instructions, rather annoying, I didn’t realise you could screw it to the ceiling around the rim thought you could only clamp it with a plastic ring, or you can pull it out to clean etc via spring clips. I was about to return it, good job I read the reviews and someone mentioned it.
Date published: 2019-09-05
Rated 5 out of 5 by from Vent Excellent fitting for an extraction vent in your ceiling
Date published: 2019-08-04
Rated 4 out of 5 by from Good Looks and does what was expected
Date published: 2019-04-18
Rated 3 out of 5 by from Good budget item Good product but built to a price. Bought three but central part is slightly out of true on all. Had to 'adjust' two of them. However, they are at a price where this is quite acceptable.
Date published: 2019-04-16
Rated 5 out of 5 by from Easy to fit We bought this, together with an in-line extractor fan and some flat ducting, to ventilate a bathroom with no outside wall. It was easy to fit to the ceiling but Toolstation should also supply 100mm diam Jubilee Clips to attach the flexible hose to both this and the in-line extractor fan. I had to buy the clips elsewhereas the flexible hose would just fall off otherwise..
Date published: 2017-12-28
Rated 5 out of 5 by from Great decent quality, easy to fit, well priced I bought these vents for winter time to cover duct pipes which I use for air conditioning. Absolutely happy with these
Date published: 2017-11-09
Rated 5 out of 5 by from System 3 Balancing Valve Fits well and looks good.
Date published: 2017-11-01
Rated 4 out of 5 by from Holes in the ceiling now covered appropriately Finally got round to purchasing some vents for a couple of duct holes in the ceiling that had been showing for a while. The valve isn't made perfectly however (the adjustable vent is a bit askew as you turn it) but will be barely noticeable once installed. There is a push-on retaining ring which may or may not be needed since it would need installing from above and I didn't fancy removing the ducting and venturing into the loft space again - useful if you need it however. Good value and allows for adjustment - hopefully the plastic won't degrade over time.
Date published: 2017-10-30
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