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G-QS-950 Replacement Sterlight QS-950 Quartz Sleeve for SP950-HO

SKU: G-QS-950
Regular price £102.50
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Technical Resources

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G-QS-950 Replacement Sterilight QS-950 Quartz Sleeve for SP950-HO

Maintain the performance and reliability of your UV water treatment system with the G-QS-950 Replacement Quartz Sleeve, a premium compatible replacement for the Sterilight / Viqua QS-950. Manufactured from high-quality fire-polished fused quartz, this sleeve provides exceptional UV light transmission while protecting the UV lamp from direct contact with water.

Featuring a closed (domed) one-end design, the G-QS-950 is supplied complete with two replacement EPDM O-rings for a secure, leak-free installation. It is compatible with a wide range of Sterilight, Viqua, Evoqua and Glasco UV ultraviolet disinfection systems.

Over time, mineral deposits such as limescale, iron and manganese can build up on the quartz sleeve, reducing UV transmission and lowering the effectiveness of your UV steriliser. Regular cleaning and scheduled replacement help maintain optimum UV output and ensure reliable protection against bacteria, viruses and other harmful microorganisms.

Features & Benefits

  • Compatible replacement for Sterilight / Viqua QS-950
  • Premium fire-polished fused quartz
  • Closed (domed) one-end design
  • Excellent UV light transmission for maximum disinfection performance
  • Protects the UV lamp from direct water contact
  • Supplied complete with 2 EPDM O-rings
  • Precision manufactured for a secure, leak-free seal
  • Easy to install during routine maintenance
  • Cost-effective alternative to the OEM quartz sleeve

Technical Specifications

  • Product Code: G-QS-950
  • Replaces: Sterilight / Viqua QS-950
  • Length: 1082 mm
  • Outside Diameter: 22.5 mm
  • Inside Diameter: 20 mm
  • End Type: Closed (Domed) One End
  • Material: Fire-polished fused quartz
  • Supplied with: 2 × EPDM O-rings

Maintenance Recommendations

To maximise UV system performance:

  • Clean the quartz sleeve every 6–12 months, depending on water quality.
  • Remove mineral deposits using Calcium, Lime & Rust (CLR) remover or white vinegar.
  • Replace the quartz sleeve every 2 years, even if it appears undamaged.
  • Inspect the supplied O-rings during servicing and replace them if worn or damaged.

Compatible UV Lamp

Designed for use with the Sterilight / Viqua S950RL-HO UV lamp. The sleeve is also compatible with systems using the S950RL-HW lamp where specified.

Compatible UV Systems

Evoqua Water Technologies

  • W2T376903

Glasco UV

  • GS950RQ

Sterilight / R-Can

  • QS-950
  • S950RL-HO
  • S950RL-HW
  • SP950-HO
  • SPV-20
  • SPV-950

Viqua

  • QS-950
  • SP950-HO
  • SPV-20
  • SPV-950

This compatibility is based on published manufacturer cross-reference information for the QS-950 quartz sleeve.

The G-QS-950 is a premium compatible replacement quartz sleeve offering exceptional optical clarity, durability and long service life. Manufactured to high standards, it provides a cost-effective alternative to the original Sterilight / Viqua QS-950 while maintaining the UV transmission required for effective ultraviolet water disinfection.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Frequently Asked Questions

How often should I replace the quartz sleeve in my UV system?
It is recommended to replace the quartz sleeve every 2 years to maintain maximum UV transmission and consistent disinfection performance, even if the sleeve appears undamaged.
What maintenance is required to keep the quartz sleeve in optimal condition?
Regular cleaning every 6–12 months using minerals deposit removers like CLR or vinegar, and inspecting and replacing the O-rings during servicing, will help keep the quartz sleeve operating effectively.
Is the G-QS-950 compatible with my Viqua UV system?
Yes, the G-QS-950 is compatible with a range of UV systems including Viqua models that use the QS-950 quartz sleeve, such as SP950-HO and SPV-950.
What material is the G-QS-950 quartz sleeve made from?
The G-QS-950 quartz sleeve is made from high-quality, fire-polished fused quartz, which ensures excellent UV light transmission and durability.
Does the G-QS-950 quartz sleeve come with any accessories for installation?
Yes, it is supplied complete with two EPDM O-rings for a secure, leak-free installation.
Can I replace just the quartz sleeve in my UV system, and how do I do it?
Yes, replacing the quartz sleeve is straightforward during routine maintenance. Ensure the system is off, remove the old sleeve, and install the new one carefully, making sure the O-rings are in place to prevent leaks.
What is the G-QS-950 replacement quartz sleeve used for?
The G-QS-950 replacement quartz sleeve is designed to maintain the performance and reliability of UV water treatment systems by protecting the UV lamp while allowing maximum UV transmission.
How do I install the G-QS-950 quartz sleeve in my UV system?
The quartz sleeve is easy to install during routine maintenance. It comes with two EPDM O-rings for a secure, leak-free fit, and you should ensure the sleeve is properly seated and the O-rings are in place.
How often should I clean or replace the QS-950 quartz sleeve?
Cleaning the quartz sleeve every 6–12 months is recommended depending on water quality, and it should be replaced every 2 years to ensure optimal UV transmission and system effectiveness.
What materials is the QS-950 quartz sleeve made from?
The quartz sleeve is manufactured from high-quality, fire-polished fused quartz, which provides excellent UV light transmission and durability.
Is the G-QS-950 compatible with other UV systems besides Sterilight / Viqua?
Yes, the G-QS-950 is compatible with a range of UV disinfection systems including Evoqua Water Technologies, Glasco UV, and Sterilight / R-Can models that specify the QS-950 sleeve.