UV Clarifiers

Use a pond UV clarifier to help control suspended algae that make pond water look green. Select a unit for your pond capacity and the water flow passing through it. UV clarification complements a pond filter; it does not replace debris removal or biological filtration.

Check out products from UV Clarifiers

Choose and maintain a pond UV clarifier

Match the clarifier's rated flow and pond capacity to your system rather than choosing by lamp wattage alone. Check the inlet and outlet connections, installation position and access needed to clean the quartz sleeve or replace the lamp.

Water clarity depends on system sizing, lamp condition, flow and pond conditions. Follow the model's maintenance schedule and operating instructions. A UV clarifier is intended for algae carried through the unit; it does not directly remove string algae attached to rocks or pond surfaces.

See Aquascape UltraKlear UV clarifiers, or compare pressure filters with integrated UV. Browse filter and UV replacement parts for model-specific maintenance.

Common questions

Will a UV clarifier remove string algae?

A UV clarifier acts on suspended algae carried through the unit. It does not directly treat algae attached to pond surfaces, rocks or waterfalls.

How quickly will green water clear?

There is no single timeframe for every pond. Results depend on the unit's sizing, flow, lamp condition, filtration and the amount of suspended algae. Check those factors if clarity does not improve.