Evo 75w Replacement Quartz

If your 75w UV clarifier is powered but water clarity has dropped, the quartz sleeve is often the hidden cause. The Evolution Aqua 75w Replacement Quartz Sleeve is a direct replacement glass sleeve designed for compatible 75 watt Evolution Aqua UV units.

The quartz sleeve creates a sealed barrier between the UV-C lamp and pond water. It allows ultraviolet light to pass through efficiently while protecting the electrical components from moisture.

Why it matters

• Protects the UV lamp from direct water contact
• Maintains correct UV transmission
• Supports effective green water control
• Essential for safe UV operation

A cloudy, scaled or cracked sleeve can significantly reduce UV output, even with a new lamp fitted.

When to replace

Consider replacing the sleeve if you notice:

• Visible cracks or chips
• Heavy mineral or limescale build-up
• Water inside the UV housing
• Reduced clarification despite a new bulb

Installation & Safety

• Always unplug the UV unit before servicing.
• Allow the lamp to cool before handling.
• Handle the quartz sleeve carefully — it is fragile.
• Inspect and refit O-rings correctly to prevent leaks.

Fitting a genuine Evolution Aqua 75w Replacement Quartz Sleeve helps restore full UV efficiency and keeps your clarifier operating safely and reliably.