G-QS-212 Replacement Sterilight QS-212 Quartz Sleeve for SQ-PA

The G-QS-212 Replacement Quartz Sleeve is a high-quality compatible replacement for the Sterilight QS-212, designed to restore the performance of your UV water steriliser. Manufactured from premium fire-polished fused quartz, it provides exceptional UV light transmission while protecting the UV lamp from direct contact with water. Suitable for a wide range of Sterilight, Viqua, R-Can and Evoqua UV systems, this replacement sleeve features an open both ends design and is supplied complete with two replacement O-rings for a secure, leak-free installation.

Over time, mineral deposits such as limescale, iron and manganese can accumulate on the quartz sleeve, reducing UV light transmission and decreasing the effectiveness of your UV disinfection system. Routine cleaning and scheduled replacement help ensure your UV system continues to deliver maximum protection against bacteria, viruses and other microorganisms.

Features & Benefits

• Compatible replacement for Sterilight QS-212 Quartz Sleeve
• Designed for Sterilight SQ-PA UV systems
• Manufactured from high-quality fire-polished fused quartz
• Open both ends design
• Excellent UV transmission for maximum disinfection efficiency
• Supplied complete with 2 replacement O-rings
• Precision manufactured for a reliable fit and watertight seal
• Easy to install during routine UV servicing
• Cost-effective alternative to the original quartz sleeve

Technical Specifications

• Product Code: G-QS-212
• Replaces: Sterilight / Viqua QS-212
• Length: 254 mm
• Outside Diameter: 23 mm
• Inside Diameter: 20 mm
• End Type: Open Both Ends
• Material: Fire-polished fused quartz
• Supplied with: 2 × O-rings

The QS-212 sleeve measures 254 mm long with a 23 mm outside diameter and 20 mm inside diameter, making it suitable for the Sterilight SQ-PA and other compatible UV systems using the QS-212 sleeve.

Maintenance Recommendations

For optimum 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, to maintain maximum UV transmission.
• Inspect the supplied O-rings during servicing and replace them if worn or damaged.

Compatible UV Lamp

This quartz sleeve is designed for use with the Sterilight S212RL UV lamp.

Compatible UV Systems

Evoqua Water Technologies

• W2T137160

R-Can / Sterilight

• QS-212
• SQ-PA

Viqua

• SQ-PA
• VT1
• VT1/2
• VT1/2A
• VT1/2B
• VT1-DWS
• VT1-DWS/2
• VT1-DWS2A
• VT1-DWS2B

The G-QS-212 is a high-quality compatible replacement quartz sleeve offering exceptional optical clarity, durability and reliable UV performance. It provides a cost-effective alternative to the original Sterilight QS-212 while maintaining the high standards required for effective ultraviolet water disinfection.