Aqualisa 265501 Green Thermostatic Cartridge for Aquarian, Opto and Hydramax Shower Valves
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Summary
The Aqualisa 265501 is a green high-pressure thermostatic shower cartridge assembly used to control mixed water temperature in selected Aqualisa exposed shower valves.
This cartridge is for high-pressure applications and should be matched by cartridge colour, part code and shower valve model before ordering. It is not the low-pressure orange cartridge or the pink combi cartridge used in other Opto valve versions.
Technical Details
| Brand | Aqualisa |
|---|---|
| Part code | 265501 |
| Di Vapor Part Number | AQUALISA-265501 |
| Cartridge colour | Green |
| Part type | Thermostatic shower cartridge assembly |
| Water system application | High pressure |
| Valve style | Exposed thermostatic shower valve and exposed bar mixer applications where this cartridge is specified |
Function and Failure Symptoms
The thermostatic cartridge blends hot and cold water to help maintain a stable outlet temperature. A worn or scaled cartridge can cause poor temperature control, difficulty setting the shower temperature, water running too hot or cold, or reduced performance if filters and seals are blocked or worn.
Confirmed Compatible Models
- Aqualisa Opto Thermo Exposed Thermostatic Mixer Shower Valve - 2005 - Spare Parts - AQ DV 116
- Aqualisa Hydramax Thermostatic Bar Mixer Exposed With Flexi Head Shower Spare Parts - AQ DV 143
Pre-Order Checks
Check the shower valve model, existing cartridge colour and part code before ordering. Aquarian wording is used across some listings, but not every Aquarian valve uses 265501, so customers with an Aquarian valve should confirm the exact valve model or send photos for identification before purchase.
Installation Notes
Isolate the water supplies before removing the existing cartridge. Clean the valve body carefully, check the filters and seals, and apply a suitable silicone grease to the O-rings during installation to help the cartridge seat correctly.
Related Spares You May Need
Fast delivery
- UK delivery: £5.95 incl. VAT for this small packet item.
- For all in-stock spare parts the typical UK delivery timescale is 2-5 working days.
- If you need a part urgently then we can provide a next-day (delivered Mon-Fri) UK delivery service for all in-stock small parcels ordered before 3.00pm, Monday - Friday.
- Next day delivery is available to select at an additional charge during the checkout.
- Worldwide delivery available — see our delivery page for details.
Returns
- 14 days 'risk-free' returns.
- Start a return within 14 days of receiving your order by calling 0121 705 0866 or using our contact page.
- Full returns information is available in our terms and conditions.
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