Factory replacement quartz sleeve for Aqua Ultraviolet Classic 25W UV sterilizers. The sleeve protects the lamp from water while allowing maximum UV-C transmission. Includes a new rubber seal for a drip-tight fit.
OEM quartz sleeve for Classic 25-watt models
High-clarity quartz to maintain peak UV output
Includes rubber seal (gasket) for secure, leak-resistant installation
Fast swap—restore performance when sleeves are stained, etched, or cracked
Fits Aqua Ultraviolet Classic 25W UV sterilizers (all port sizes; wiper and non-wiper variants)
Item: Quartz Sleeve with Rubber Seal — 25 Watt
Material: UV-transparent fused quartz; elastomer seal
Fitment: Sized specifically for the Classic 25W body (not interchangeable with other wattages)
(1) Quartz sleeve – 25W
(1) Rubber seal/gasket
Power OFF and isolate the unit; relieve pressure before opening.
Inspect the old sleeve—replace if cloudy, etched, or cracked.
Clean deposits from the end cap, lightly lubricate the new seal with silicone-safe lube, and seat the sleeve squarely.
Hand-tighten only; do not overtighten end hardware.
Replace lamps annually (≈9–12 months run time) and sleeves as needed for maximum UV dose.