Replacement Quartz Sleeves for Pond UVs
Model-matched quartz tubes for Oase, Evolution Aqua, Filtreau, Yamitsu, BIO-UV, Burtons, Delta and submersible UV systems
The quartz sleeve is the clear barrier between a pond UV-C lamp and the water. It keeps the lamp dry while allowing useful UV-C energy to pass into the water around it. Ordinary glass is not a suitable substitute because its UV transmission and thermal behaviour are different.
This category covers a wide range of sleeves, including Aqua Source and AquaForte submersible units, 40-75W T5 systems, Oase FiltoClear and Bitron C, Filtreau amalgam, Evolution Aqua evoUV, Delta UV, Burtons, BIO-UV and Yamitsu. Sleeves that look similar can differ in length, diameter, wall thickness, end shape and seal arrangement.
If you are unsure, send us a photograph of the UV label and the old sleeve beside a tape measure. A wattage alone is often not enough to identify the part.
Price range: £88.99 through £142.99 (inc VAT)
Price range: £216.99 through £345.99 (inc VAT)
Products in the Current Quartz Sleeves Range
Open the Quartz Sleeves models for current specifications, supplied fittings and live prices. We can check flow, pond duty, pipework and servicing access before you commit to equipment that must work within the complete system.
- Amalgam Submersible Replacement Quartz UV 40 Watt
- Aqua Source Submersible UV Replacement Quartz Sleeves
- AquaForte Amalgam Submersible Replacement Quartz UV 80W
- Bio-UV Replacement Quartz Sleeves
- Burtons Replacement Quartz Sleeves
- Delta UV EA Series Quartz Sleeve Replacements
- Evolution Aqua Quartz Sleeves
- Filtreau Fully Submersible Amalgam Replacement Lamp And Quartz
- Filtreau Quartz Sleeve For Amalgam
- Oase Bitron C Quartz Sleeves
- Oase FiltoClear Quartz Sleeves
- T5 Submersible 40-75W UVC Replacement Quartz Sleeve
- Yamitsu Quartz Sleeves
Why Clean Quartz Matters
Hard-water scale, biofilm and iron staining reduce UV-C transmission even when the lamp is new. The result can look like a failed bulb: green water returns, exposure falls and the filter has less treated algae to capture.
Use a cleaner approved for the sleeve and its seals, rinse thoroughly and handle the tube with clean hands. Do not scrape it with metal or an abrasive pad that can scratch or weaken it.
Match the Exact UV, Not Just the Wattage
Start with manufacturer, model family, wattage and generation. Then compare overall length, external diameter, closed or open end, collars, locating shoulders and O-rings. A 55W sleeve for one UV family is not automatically compatible with another 55W unit.
For submersible amalgam systems, also identify the mounting connector and whether the lamp and quartz are supplied separately or as a matched assembly.
Safe Removal and Refitting
- Isolate electrical power and stop or drain the water circuit.
- Let a hot lamp and sleeve cool before handling.
- Support the quartz evenly; never lever one edge with a screwdriver.
- Clean the seal grooves and fit the correct new or serviceable O-rings.
- Tighten retainers evenly by hand to the manufacturer’s instruction.
- Leak-test with the power still isolated, then restore normal operation.
Discard any sleeve with a crack, chip, deep scratch or cloudy damage that cleaning cannot remove.
Our advice: order the lamp, sleeve and seals together when servicing an older unit. It avoids reopening the UV because one tired component was missed.
Related Categories and Useful Next Steps
All UV replacement parts · Replacement UV bulbs · UV mounting accessories · All pond UV clarifiers · Pond equipment cleaners
Frequently Asked Questions
What does a quartz sleeve do?
It keeps water away from the electrical lamp while transmitting UV-C into the water.
Can I use ordinary glass instead?
No. Use the specified high-purity quartz sleeve for the exact UV.
Why does scale reduce UV performance?
Deposits absorb or scatter UV-C before it reaches the water.
Can a sleeve be cleaned?
Yes if it is sound. Use a suitable non-abrasive method and replace it if damage remains.
How do I identify the correct sleeve?
Use the manufacturer, exact model, wattage, generation, dimensions and end/seal design.
Is wattage enough to match it?
Usually not. Different brands and model generations can use different sleeves at the same wattage.
Should I replace the O-rings?
Replace damaged, flattened or hardened seals and use only the specified type and lubricant.
Can I overtighten the retaining cap?
Yes. Uneven or excessive force can crack quartz or distort a seal.
How can I leak-test it safely?
Reassemble and restore water pressure with electrical power isolated, then inspect every seal before energising the lamp.
Can I touch the quartz?
Handle it carefully with clean hands or gloves and remove fingerprints before assembly.
What if the sleeve is cloudy after descaling?
Persistent clouding or etching can reduce transmission; replace the sleeve.
Can a hairline crack be reused?
No. A cracked sleeve can allow water into the lamp and electrical area.
Does a new sleeve replace the need for a new lamp?
No. Lamp output and quartz condition are separate maintenance items.
Are amalgam UV sleeves different?
They may use different lengths, temperatures, connectors and matched lamp assemblies; identify the exact unit.
Can you identify a sleeve from a photo?
Usually. Send clear photographs of the UV label, old sleeve, end fittings and measurements.
