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McAlpine Ventapipe 50 Air Admittance Valve for 3''/4'' pipe

4.4 (20 reviews)
SKU: 241127134715004 EAN: 5036484005854

Compare 2 prices for McAlpine Ventapipe 50 Air Admittance Valve for 3''/4'' pipe — from £24.87 to £55.51 across 2 UK sellers including Screwfix, Jewson. Save up to £30.64 (55%).

£24.87 1h ago
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Compare Prices from 2 Sellers

Prices updated 20 Apr 2026
2
Jewson
£55.51 +£30.64
14h
#2 Jewson
14h ago
£55.51 +£30.64
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McAlpine Ventapipe 50 Air Admittance Valve with dual fit synthetic rubber finger seal outlet for 3"/75mm or 4"/110mm soil pipe.

Valve diaphragm lifts, allowing air to be drawn into the system when it is subjected to negative pressure. On cessation of negative pressure the diaphragm returns to the closed position thereby preventing the escape of foul air into the building.

The valve is designed to open and close spontaneously when required thereby allowing a supply of air to adequately ventilate the system thus ensuring a smooth discharge.

A1 rated.

Air flow capacity of 15.5 l/s.

Brand McAlpine
Compatible Brand White
Compatible Model United, Bathroom, Metric
Features Rust Resistant, Smell-Proof
Finish Unfinished
Item Diameter Not Specified
Item Height Not Specified
Item Weight Not Specified
Material Rubber, Plastic
MPN VP50P
Type TBA
No features listed
No items listed

Customer Reviews 20

4.4
20 reviews
5 star
16
4 star
1
3 star
0
2 star
0
1 star
3
Automatic Air Admitance Valve 3 inch
5.0
February 23, 2026
Jonty7 Verified Purchase

I needed a specific size with a very small overhang as the pipe was tight in a corner due to bathroom furniture being fitted. I explained that to the staff behind the counter, he said he would get the item from stock and that he would open the box to allow me to check the size. It was perfect and a very competitive price!

It worked
5.0
January 9, 2025
Chris Hodder Verified Purchase

Did the job. Fitted without issue to replace broken durgo. Will see how it performs going forward.

Great for tighter spaces where the full sized item doesn’t fit. I think I’d always go for this one in future now.
5.0
January 3, 2025
MisterLeeee Verified Purchase

Ideal for confined spaces in place of full sized item

Durgo air admittance valve works perfectly
5.0
December 17, 2024
JK6565 Verified Purchase

Quality item, simplicity itself to fit and resolved my problem (pong) almost instantly.

Very quick and easy purchase
5.0
August 26, 2024
a6353rcbuw4p6nz6js0qd6c7r Verified Purchase

Was ready to collect within half an hour, quality service all round!

Does exactly what it’s supposed to.
4.0
March 11, 2024
twhcsuj2w4velrr7meyyx87zu Verified Purchase

It’s a vent and does what it is supposed to. Not too sure what else to say!

No more Pong!
5.0
October 30, 2023
GlynT Verified Purchase

Fixed smell coming into room and fitted perfectly to pipe.

Keeping my loft space smelling sweet
5.0
October 24, 2023
Steviboy Verified Purchase

McAlpine products are always very good quality and this VP50P Air admittance valve is no different .

Good Air admittance Valve
5.0
September 8, 2022
PVD 1 Verified Purchase

Straight forward wasy fit and good quality

5.0
July 19, 2022
Stu buts Verified Purchase
5.0
March 30, 2022
Deano16 Verified Purchase
Not very well made.
1.0
November 17, 2021
Paddy j Verified Purchase

The item was too cheap, i have doubts after it fell apart if it will do the job i bought it for.

Poor quality AAV !
5.0
October 26, 2021
Roving plumber Verified Purchase

Only lasted 3 months before letting smells out. On inspection found top rubber seal to be warped. Was refunded by Toolstation but hassle my customer and I could do without!

Smell stopper
5.0
March 7, 2021
Braai1 Verified Purchase

When these go wrong you can certainly notice it, this was a perfect and easy replacement

Easy to fit and does the job
5.0
February 15, 2021
Warks Drains Verified Purchase

Easy to fit and does the job. Often air admittance valves are glued on and in difficult spaces.The push fit gets around these issues.

Perfect for the job
5.0
July 20, 2020
Waubug Verified Purchase

Quick and easy to fit. Perfect solution to the problem.

Best admittance valve
5.0
May 28, 2020
Cwdprjects Verified Purchase

Compact easy to use god quality profuct.

Not good
1.0
October 31, 2019
Jaymo

Bought this as easy to fit. After a short while I started to get foul smells coming in. When I took it off and checked the internal rubber seal which allows air in, it had gone like a concertina and not making a seal. Total waste of money

Poor quality
1.0
October 13, 2019
Nhra Verified Purchase

After 3 months the rubber sealing ring went out of shape so did not seal properly allowing gas and smell out of pipe

Does exactly what it is supposed to do.
5.0
December 18, 2017
MysterE Verified Purchase

Installed a couple of days ago and is working perfectly.

3 found this helpful
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