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1 1/2" to 2" Adaptor Seal

4.3 (56 reviews)
SKU: 260223155537008 EAN: 5011629014090

Compare 1 price for 1 1/2" to 2" Adaptor Seal — from £2.90 across 1 UK seller including Toolstation.

£2.90 -157h ago
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Customer Reviews 56

4.3
56 reviews
5 star
40
4 star
4
3 star
3
2 star
4
1 star
5
Useful item
5.0
February 18, 2026
Tim Senior Verified Purchase

I bought this to seal the waste at the base of a belfast sink where the uneven opening at the base was 80mm but the waste width only 60mm. It performed as expected, supported by the supplied tightening nut etc (which came with the waste) I couldn't find this for sale anywhere else so it was great to find it not only available but also in stock !

adapter seal
5.0
November 9, 2025
djmel Verified Purchase

a must if you have a older cistern this seal centralizes the outlet pipe perfect

Not needed
3.0
November 7, 2025
NQNP Verified Purchase

Not suitable for job requirements so not used at all

Should be with the flush valve
5.0
October 5, 2025
Nps Verified Purchase

Great if you need to convert to 2" for replacement & thats the hole in the cistern. Usually the flush valve comes with this, but I've had a few recently that didn't think it nay have been a problem at Fluidmaster. Last one I got had this so hopefully wont have to purchase again

Really useful seal
5.0
August 30, 2025
MBlnd Verified Purchase

Just what I needed to change from a 2” flush valve to a 1.5”.
It worked perfectly and importantly a really good seal

Old Rust Bucket
5.0
July 15, 2025
Obley Verified Purchase

Make Re-fitting of syphon assembly a lot cleaner without the need for plumbers mate.

Cistern seal for old toilets
5.0
May 16, 2025
Redbaron 12 Verified Purchase

Ideal for older toilet cisterns, tried the universal ones but wouldn't seal, this was perfect and only Toolstation sold them.

Totally unsuitable for purpose
1.0
May 1, 2025
Davy DIY Verified Purchase

The sizes quoted are incorrect , this item is oversize and consequently it will not fit the cistern.

Toilet
5.0
March 27, 2025
ce55b20e-e245-587e-8483-0aea5c8a98f8 Verified Purchase

Good quality but not needed in the end.item refunded easily

A must
5.0
February 25, 2025
Philip80 Verified Purchase

I always buy these. The one that come with the toilet are rubbish. This seals Evey time

Didnt work 4me 😞
3.0
January 20, 2025
MeB79 Verified Purchase

Doughnut did not give a quality seal so hoping this would assist. It didn't as simply slipped through pan 😶

Adaptable adapter!
5.0
January 17, 2025
Frank Knight Verified Purchase

A very useful seal used to install a drain in a Belfast sink!

1 1/2" to 2" Adaptor Seal
5.0
December 12, 2024
diuehr9fgjweosdnvk Verified Purchase

Fitted a new close couple kit as when fitted a new flush the old one had rusted. leaked badly. as thought the kits fitted all the toilets. fitted this adaptor no more leaks.

1.5" to 2" adaptor.
2.0
October 9, 2024
anon 3 Verified Purchase

very hard to insert into the hole at the bottom of the system. But centralised the syphon and didn't leak.

Precisely what I needed.
5.0
September 9, 2024
B1ggsy

Was having trouble getting a new 1½" Syphon Flush to seal at the base of the cistern. The flanges of the flush and nut were not wide enough for the 60mm hole in my cistern and water was leaking into the bowl. This slotted in perfectly and no more leaks.

Seems well made, but it didn't work for me.
2.0
July 29, 2024
PD Bath Verified Purchase

I bought this to fit the flush hole in a cistern with the cone and ribbed side of the washer facing the hole but it didn't work. The cone was marginally too big for the hole but enough so that the washer did not sit tightly onto the cistern floor resulting in a leak although I didn't get as far as refilling the cistern with water because I anticipated a major leak. So it was no good for me but that doesn't mean to say that the product is not good in the right application.

Value for money
5.0
June 20, 2024
Stan019 Verified Purchase

Value for money, I am very happy with my purchase.

Didn't work for me.
2.0
March 16, 2024
Earl Gray Verified Purchase

I've got a cistern with a hole that is just shy of 2 inches. Getting a 1.5 inch syphon to seal proved impossible as the stupid syphon designers have not made the surrounding lip wide enough (at one point only!). So this seemed a good solution. No it isn't. The inner centralising conical bit is wider that 2 inches so won't fit a 2 inch hole, let alone my not quite 2 inch one. What were you thinking designers!!! My final solution was to use a 1.5 inch flush valve which at least has a decent sized lip (crucially without a stupid narrow bit), so with care it is possible to centralise it in the 'not quite 2 inch' hole and get a good seal.

Worked, it stopped the leak
5.0
December 6, 2023
Fred47 Verified Purchase

Worked well I used to stop stop the leaking coupled toilet

Good product
4.0
October 3, 2023
Grandad Frank Verified Purchase

I had problems in sealing the cistern with an ordinary flat seal. This adapter seal worked a treat and no leaks

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