Where to buy 3/4" BSP quarter turn ceramic tap glands?

[DIY10291]

Screwfix, Wickes and Toolstation only sell 1/2" glands. My old shower mixer tap is dripping, but it's 3/4". Why does nobody sell them, and what should I do? The only ones I can find from a big retailer are at City plumbing, but they're expensive and it doesn't say whether they have a 20-tooth spline to fit my handles. https://www.cityplumbing.co.uk/iflo...-Barcelona,-Bilbao,-'S'pa,-Calm+Lode/p/820748

 

[RandomGrinch]

There are some on Amazon, but I don't know if they will be correct?
https://www.amazon.co.uk/Cartridges-Quarter-teeth-Supplied-screws/dp/B07NQN64MK

 

[DIY10291]

There are some on Amazon, but I don't know if they will be correct?
https://www.amazon.co.uk/Cartridges-Quarter-teeth-Supplied-screws/dp/B07NQN64MK

Thank you, but I tend to use Amazon/eBay as a last resort (except for things "Dispatched from and sold by Amazon", of which there appear to be none for this product), as I don't trust the quality. I'm mostly interested in why the big retailers aren't stocking this - is it that 3/4" is very uncommon (even though it's the standard for bath taps?) or are people using some kind of adapter with 1/2" glands?

 

[muggles]

www.lunns.net

 

[Deleted member 267285]

Could try these as well, if you know the brand https://www.showerdoc.com/shower-spares

 

[FiremanT]

Thank you, but I tend to use Amazon/eBay as a last resort (except for things "Dispatched from and sold by Amazon", of which there appear to be none for this product), as I don't trust the quality. I'm mostly interested in why the big retailers aren't stocking this - is it that 3/4" is very uncommon (even though it's the standard for bath taps?) or are people using some kind of adapter with 1/2" glands?

Although bath taps (I don't actually know how prevalent this is for showers) are 3/4" inch, they are very commonly 1/2" glands inside! Have you actually removed the glands to check?.

Regarding the question of quality, I wouldn't worry about the source. Most plumbing materials are poor anyway - especially if you are not buying from the original manufacturer. Having looked at that link, you are probably more likely to be successful there than with merchants or DIY shops

 

[Wilson78]

Thank you, but I tend to use Amazon/eBay as a last resort (except for things "Dispatched from and sold by Amazon", of which there appear to be none for this product), as I don't trust the quality. I'm mostly interested in why the big retailers aren't stocking this - is it that 3/4" is very uncommon (even though it's the standard for bath taps?) or are people using some kind of adapter with 1/2" glands?

Old thread I know but I'm having the same problem.
All stores sell 1/2", but WHY NOT 3/4"?
Doesn't add up