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💧 Elevate your water heater game — compact, powerful, and built to last!
The Ariston Water Heater Expansion Vessel Kit A features a 2-litre capacity vessel with a 15mm check valve, designed for easy installation and reliable pressure management up to 10 bar. Lightweight and compact, it fits seamlessly with Ariston water heaters, ensuring system safety and efficiency backed by strong customer satisfaction.
| ASIN | B00QVMB9KG |
| Best Sellers Rank | 71,339 in DIY & Tools ( See Top 100 in DIY & Tools ) 106 in Water Heaters & Parts |
| Brand | Ariston |
| Capacity | 2 litres |
| Colour | White |
| Customer Reviews | 4.5 out of 5 stars 251 Reviews |
| Is Electric | No |
| Manufacturer | Ariston |
| Manufacturer Warranty Description | 12 months. |
| Material | Brass , Stainless Steel |
| Maximum Pressure | 10 Bars |
| Model Number | 445190 |
| Mount Type | internal |
| Part Number | Kit A |
| Special Features | Check Valve Safety Feature |
| Special feature | Check Valve Safety Feature |
| Style | Water Heater Accessory |
| UPC | 708747445190 |
| Unit Count | 1.0 count |
L**S
Quality accumulator
Very good quality accumulator definate value for money. Easy installation with compact design, meaning less space taken up by system installation. Excellent buy.
B**.
Good product
It is working well after the plumber install it with the new water heater and piping. It is value for money as the price is lower than buying from the big brand 'Sxxxxfxx'.
T**Y
Expansion vessel
This goes alongside with my all under sink heater been in the flat now for four years and no problems with it
R**.
Easy fit expansion vessel
Nice and compact expansion vessel easy to fit with most basic tools ,you will need to get a pipe T connection ...compression or push fit or a solder joint if you like, it came with check valve Very quick delivery
M**P
Can stop water hammer
We had a loose section of polypipe in a wall and the washing machine caused it to make a noise when filling the machine. This is due to the washing machine water valve being an on/off type of arrangement rather than a gradual open and close like a tap. This on/off of the water flow means that the kinetic energy the flowing water has is brought to an abrupt stop and this can be transmitted back up the pipe as water hammer. Fitting one of these expansion vessels close to the washing machine allows for that kinetic energy to be absorbed inside the expansion vessel by the inflatable bladder rather than shocking your pipe work. You'll need a copper to iron fitting and a rubber washer to get it to seal, don't try a fibre washer as they just don't seal properly. You may be able to get a tap connector hose to work if you get stuck.
M**L
Reliable and durable
I plumbed in an undersink heater a few years ago, and included one of these in the setup. It doesn't leak and apparently does its job perfectly.
B**S
Does the job.
What to say about an expansion tank? I’m not a plumber. This was a DIY installation of an under sink water heater. A compression fitting is needed to attach it. It is heavy when filled with water so can’t rely on the pipes to support, so it would have been useful to have included a bracket. I had to improvise a strap. Hence 4 stars instead of 5.
S**Y
Works well
The only thing I could fault on this was my original one had a small bracket welded to it to fix to the wall bracket whereas this one didn't. Apart from that it worked perfectly & arrived sooner than expected.
Trustpilot
2 weeks ago
2 months ago