Login Register

Zilmet Expansion Vessel 18L

4.5 (75 reviews)
SKU: 260223155525662 EAN: 5051258056009

Compare 1 price for Zilmet Expansion Vessel 18L — from £40.29 across 1 UK seller including Toolstation.

£40.29 17h ago
View
No specifications available
No features listed
No items listed

Customer Reviews 75

4.5
75 reviews
5 star
52
4 star
15
3 star
3
2 star
0
1 star
5
New expansion vessel replacement.
5.0
November 25, 2025
35e46fde-fc2d-575e-9ee9-f15ade8dbd33 Verified Purchase

Good vessel, fitted the installation perfectly and was simply enough to fit.

wasnt charged with air............................
5.0
November 18, 2025
JOE BLOGGS 1 Verified Purchase

wasnt charged with air............................

Expansion Vessel
4.0
November 14, 2025
Adampp Verified Purchase

Does exactly what it says on the tin easy to change over

Quick permanent heating fix
5.0
November 4, 2025
Bob Plymouth Verified Purchase

Expansion vessel on Worcester combo boiler malfunction and an absolute pig to replace and would need boiler removal to be able to do it coupled with a hefty heating engineer bill. Plumber mate advised fitting this expansion vessel in the loft space on the return heating run. Easy to complete by a competent DIYer and instant result at a fraction of the price

Poor quality leaking from new (see picks)
1.0
June 30, 2025
23ea101c-5f39-5f82-820b-2f954928ab01 Verified Purchase

Leaked immediately after fitting and after removal found the upper part and lower part were not even fitted together (please see pictures and sort video). Also turned the hot water a dirty brown colour which I can only imagine is rust on the inside of the vessel. Not very impressed nor was my customer. Had it replaced and fitted the new one which also turned the water dirty brown but the water hold with no leaks at present. The customer is now insisting on me to replace with a different make. 😩😩😩

This was a direct replacement to the one I currently have that failed. Been running for a few months now with no issues. Click and collect was great.
5.0
February 12, 2025
Dancot Verified Purchase

Convenient click and collect......................

Poor quality
1.0
November 19, 2024
StewieC Verified Purchase

1st vessle lasted 18 months then rusted through. replacement failed immediately and the 3rd is holding out after 2 days.

Expansion vessel
5.0
October 26, 2024
Master plumber Verified Purchase

Very good price, decent quality, did the job i wanted it for

Happy with the purchase
5.0
October 15, 2024
Dharmik Verified Purchase

Good quality, reasonable price compared to other places/online.

Best buy
5.0
October 11, 2024
Agent X Verified Purchase

Good quality and price, I will use this product again!

18 litre expansion vessel
1.0
September 18, 2024
RJS2 Verified Purchase

The expansion vessel was faulty out of the box. The schrader valve just turned in the top of the vessel meaning I couldn’t even remove the dust cover.

Does the Job expansion tank
5.0
September 14, 2024
Bob Ad Verified Purchase

Good quality and price, ideal replacement or existing failed vessel if a straight swap

Good, time will tell how good.
4.0
August 25, 2024
Neverbee Verified Purchase

My first impressions of this expansion vessel are positive and hopefully its lifespan will be as good as its price. Be aware that NO wall bracket is included. I would advise you to check the pre charge bar with a gauge before commissioning your system.

Return refused then accepted
3.0
April 19, 2024
ChrisMore Verified Purchase

When I fitted the expansion vessel it was clear that it was leaking. I checked with customer services and took it back as instructed but the counter staff refused to take it back as it had been used. They told me to get in touch with the manufacturer.
Before doing this, I contacted customer services again, who assured me it could be taken back by the counter staff abd is get an immediate refund. She also put a note in the e receipt to that effect. I took it back and was refunded without problem.. the only problem then was that I had driven 150 miles in the process!

Bladder maintenance
5.0
April 11, 2024
Kudox kid Verified Purchase

Good price, quality part which is ready to fit at the next drain down replacing a 21 year old part.

Expansion vessel
4.0
February 27, 2024
TC Gas Verified Purchase

Does what it should do! A mounting bracket included in the box would improve my rating

Good buy
5.0
February 20, 2024
Gooral Verified Purchase

Good quality, does what ment to do, right price as well

Lot cheaper than fitting oem part.
5.0
November 20, 2023
Dave 1010 Verified Purchase

Boiler manufacturer wanted 3 times the price, so fitted expansion vessel on the system, also made it easy access for when this one needs repairing, which is not the case on many boilers.

Didn’t Work
1.0
October 12, 2023
Peterw6066 Verified Purchase

I am sure I was just unlucky but it was defective and didn’t work. Bought a different one that was perfect

1.0
January 17, 2023
34r6rnibeymbd7cegeatvefu9 Verified Purchase
200,000+ Products
220+ Trusted Sellers
183,000+ Price Points
72hr Price Updates

Featured Brands

All Brands