
Ariston
Ariston Anode + O-Ring (Protech) 65109909
Anode and O-ring for Ariston Protech unvented cylinders, fitted from August 2010 onwards.
At a glance
- Also known as 8904703
£36.29
£30.24 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
This is an anode with a sealing O-ring, manufactured by Ariston for the Protech range of unvented hot water cylinders. The anode is a sacrificial component that corrodes in preference to the cylinder wall, protecting the steel vessel from corrosion over its service life. The O-ring seals the anode connection at the cylinder.
Signs this part needs replacing
- The anode has visibly corroded or reduced in mass when inspected
- Discoloured or rusty water drawn from the hot tap
- A metallic or sulphur-like odour in the hot water supply
- Rumbling or popping noises from the cylinder during heating
- The anode has reached the end of its recommended service interval
Before you order
- Confirm your cylinder is an Ariston Protech model
- Check the model and edition against the fit list above
- Verify the cylinder was manufactured from August 2010 onwards
- Have the cylinder model and serial details to hand before ordering
Compliance
| Alternative numbers | 8904703 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ARISTON ST 100 PROTECH EDITION 3 (JAN 2011) | — | — | — | |
| ARISTON ST 50 PROTECH EDITION 3 (JAN 2011) | — | — | — | |
| ARISTON ST 80 PROTECH EDITION 3 (JAN 2011) | — | — | — | |
| ARISTON ST100 Protech | — | — | — | |
| ARISTON ST100 EU Protech | — | — | — | |
| ARISTON ST50 Protech | — | — | — | |
| ARISTON ST75 Protech | — | — | — | |
| ARISTON ST80 Protech | — | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
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