Best Ventilation Valves Deals Online in the UK (25 Deals Found)

Last Updated - 23/09/2026 Sort By:

Best Choice
VENTS UK

New
VENTS UK 100mm Backdraught Shutter Connector – 4" Inline Non-Return Damper Flap for Extractor Fans, Cooker Hood, Bathroo
Stops Cold Air Entering Your Home: Built-in gravity flap closes automatically when your fan is off, helping to block dra

£6.39 £7.99
AFASOES

New
AFASOES Round Ceiling Vent Adjustable Air Valve Grill Ventilation Ducting Hose Cover Bathroom Wall Vent Cover Metal Extr
【Exhaust & Reduce Noise】:Ventilation duct cover can be perfectly used for indoor exhausting to bring fresh air to rooms.

£11.58
New
Ceiling Extract Air Valve ( 4 Sizes ) White, Ventilation, Ducting, Round
AB (37-38, 44-45 & 53-56), BT (Northern Ireland), CA (18-27), HS (Outer Hebrides), IM (Isle of Man), IV (7, 9-12,14-28,

£12.78
EUROPLAST

New
Ø 100mm / 4'' Adjustable Diffuser - Air Supply Valve - Ventilation Ducting Cover - Metal - White
Effortlessly Adjust the Direction and Intensity of Airflow in Your Ventilation System by Simply Rotating the Control Dis

£9.97
New
Blauberg White Circular Ceiling Air Valve Vent Diffuser MVHR MEV Ventilation
Compatible with ventilation and MVHR systems. Designed to connect directly to standard ventilation ducting, it provides

£12.99
10% Off
NESVENT

New
2 x 100mm Backdraught Shutter Flap 4-inch Non-Return Valve Damper Flap to Connect Duct Pipe or Flexible Ducting Hose Bac
You will receive a pack of 2 x 100mm / 4 inch plastic ducting connectors with inline backdraught shutter / gravity dampe

£8.99 £9.99
Best Value
HG Power

New
HG Power Adjustable Air Vent 100mm Ventilation Grille Cover Stainless Steel Round Extractor Outlet for Bathroom Office K
【Superior Material】The air vent cover is made of SUS 304 stainless steel after brushed craft, durable to use.

£11.89 £13.99
New
Metal Exhaust Valve, Ducting, Ceiling Ventilation Air Vent, Whole house, 9010
White air valve's RAL: 9010 - ALL SIZES.

£12.65
Blauberg

New
Blauberg UK 4 inch 100 mm White Circular Ceiling Mounted Air Vent Grille Cover Round Ventilation Extract and Supply Valv
SIZE: Designed for mounting in any ceiling connected to a ventilation system with ducting to 100 mm Dia 4" connection. D

£10.89
New
Blauberg Stainless Steel Circular Ceiling Air Valve Disc Vent Ventilation
It is designed for use with standard circular ducting and integrates easily into centralised ventilation systems. Correc

£15.99
Qiilu

New
Exhaust PCV Valve, 26740 2G000 Car Energy Saving High Accuracy Heat Resistant PCV Control Valve Replacement for Hyundai
Perfect Fit: Exhaust PCV Valve is replacement for Hyundai Elantra Coupe, replacement for Hyundai Genesis Coupe, and repl

£7.09
30% Off
Fantronix

New
Fantronix 100mm Circular Duct Connector with Backdraught Shutter – 4” Non-Return Damper for Ventilation Ducting & Extrac
100mm Circular Duct Connector With Damper - Plastic 100mm (4”) round ducting connector with integrated gravity flap back

£5.59 £7.99
New
80-200mm Air Duct Check Valve Ventilation Non Return Exhaust Fan Backflow
Keep your ventilation system running efficiently with this durable air duct backdraft damper. Designed to help reduce un

£4.56
HG Power

New
HG Power 100 mm / 4" Inch Ducting Pipe Connector with Backdraft Damper Flap, One-Way Airflow Ducting with Backdraught Sh
【𝐄𝐚𝐬𝐲 𝐈𝐧𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧】Designed for standard Ø4"/100mm ducts, this ducting pipe connector with backdraft dampe

£10.44 £10.99
New
100/150mm Round Air Vent Cover Ducting Ventilation Extract Valve Grille UK
100/150mm Round Air Vent Cover Ducting Ventilation Extract Valve Grille UK

£3.30
calimaero

New
calimaero® RKKI Backdraft Shutter 4 inch Inline Extractor Fan Backdraft Shutter Self Closing, Weather/UV Resistant Plast
PRODUCT FEATURES calimaero RKKI works well in square meter 95mm. Use sealing tape or sealing band for a tight fit on hos

£10.45
New
100/150mm Round Air Vent Cover Ducting Ventilation Extract Valve Grille UK
Round Ducting Ventilation Cover White ABS Air Vent Extract Valve Grille 100/150mm. Designed to fit standard 100mm and 15

£3.45
New
80-200mm Air Duct Check Valve Ventilation Non Return Exhaust Fan Backflow
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£4.67
New
Metal Supply Valve, Ducting, Fan, Ceiling Ventilation Air Vent, Bathroom, 9010
White air valve's RAL: 9010.

£12.65
New
4" 100mm Plastic Round Ducting Ventilation Tube Extractor Fan Vent Pipe fittings
Hose for this tyoe of hose is available see below. Colour: Black, Silver. Colour: White. Colour: Grey. Colour: Silver. M

£6.99
New
High-Quality Round Metal Air Vent Grille with Fly Screen Ventilation Duct Cover
Air vent grilles are designed for ventilation inside and outside of the building. Round Air Vent Grill Cover. High-Quali

£7.49
New
80-200mm Air Duct Check Valve Ventilation Non Return Exhaust Fan Backflow

£19.09
New
Air Vent Grille Extract Supply Valve Diffuser Ducting Ventilation Cover 75-200mm
Size:75mm (2.95in)/100mm (3.94in)/125mm (4.92in)/150mm (5.91in)/200mm (7.87in). Can be perfectly installed on the ceilin

£5.13
New
Adjustable Metal Ceiling Diffuser Air Supply Exhaust Valve Ventilation Cover
The exhaust diffuser for installation in ceilings or walls.

£11.49
New
Steel Air Valve (Supply) (White)Ventilation, Ducting, Circular Ceiling Air Valve
Ideal for bathrooms, toilets and shower rooms. Manufactured from mild steel with powder coated white RAL 9010. AB (37-38

£13.94

25 Ventilation Valves deals are available from: Amazon, eBay stores, starting from £3.30.
The biggest discount we found is 30% on Fantronix 100mm Circular Duct Connector with Backdraught Shutter – 4” Non-Return Damper for Ventilation Ducting & Extractor Fans at Amazon.
The lowest price we found is £3.30 while the highest is £19.09.
Prices for the best Ventilation Valves deals average at £9.62.
Last updated on September 23, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Ventilation Valves.