Water type
Marine + Freshwater
Fits
Twist UV 25 W and 57 W
Genuine part
Yes, genuine Aqua UV
Aqua Ultraviolet Twist UV 25w/57w QUART SLEEVE
A scratched or mineral-caked quartz sleeve is usually why a UV steriliser stops working, long before the lamp actually fails. This is the genuine replacement quartz sleeve for the Aqua Ultraviolet Twist UV steriliser in both the 25 W and 57 W versions. It sits between the UV-C lamp and the water flow, letting UV-C pass through to the water while keeping the lamp itself dry and protected.
Key features
- Genuine Aqua Ultraviolet part – made to fit the Twist UV chamber, not a generic aftermarket tube.
- Fits both wattages – one sleeve size covers the Twist UV 25 W and Twist UV 57 W.
- Restores UV-C transmission – a clear sleeve passes far more UV-C than one etched by scale or scratched during cleaning.
- Quartz construction – transmits UV-C wavelengths that ordinary glass blocks.
Specifications
| Fits | Aqua Ultraviolet Twist UV 25 W and Twist UV 57 W sterilisers |
|---|---|
| Material | Quartz glass |
| Function | Separates the UV-C lamp from the water flow while passing UV-C light through |
| Water type | Freshwater and marine |
| Pack contents | 1 x quartz sleeve |
Suitable for, and not suitable for
Suitable as a direct replacement quartz sleeve for the Aqua Ultraviolet Twist UV 25 W and 57 W. Not sized for Aqua Ultraviolet's Classic series or for other brands' UV sterilisers – check your unit's model and wattage before ordering, since sleeve diameters differ across the Aqua Ultraviolet range.
What's included
One quartz sleeve only. The UV lamp, unit housing, O-rings and end caps are not included – order these separately if they also need replacing.
Care and maintenance
When should I replace the sleeve rather than just clean it?
Wipe the sleeve down each time you change the lamp. Replace it outright if it's visibly scratched, chipped, or permanently hazed with limescale that won't wipe off – all three block UV-C output even with a fresh lamp fitted.
How do I clean it in the meantime?
Wipe with a soft cloth; a mild vinegar soak lifts mineral scale without scratching the quartz. Avoid abrasive pads, which score the surface and reduce UV-C transmission permanently.
Warranty and delivery
Sold as a genuine Aqua Ultraviolet spare part. Standard delivery Australia-wide; quartz sleeves are fragile, so we pack them accordingly.
Common questions
Does one sleeve fit both the 25 W and 57 W Twist units?
Yes – the Twist 25 W and 57 W share the same chamber diameter, so this sleeve fits either wattage.
Will a cracked sleeve leak?
A cracked or chipped sleeve can let water reach the lamp and electrical components, so replace it as soon as you notice damage rather than waiting for a full failure.
How often do I need a new one?
Aqua Ultraviolet doesn't publish a fixed replacement interval for the sleeve itself – inspect it at each annual lamp change and replace only when scratched, chipped or permanently scaled.




