The 18w UVC bulb inside this unit will control green water effectively in most popular sized garden ponds. This UV lamp will force tiny microscopic algae to bind together making solid particles. These solid particles will sink to the floor and ultimately...

The Hozelock Vorton range of UV lights has been our bestselling pond clarifier range for a long time. This powerful 36w is the perfect size for most garden ponds. This special light will eliminate microscopic single-cell algae in your pond - the tiny...

New largest addition to the Hozelock Vorton range - this 55w UVC will be able to clear even the greenest pond. The special ultraviolet light emitted by this UVC unit causes algae to flocculate (join together). Tiny microscopic single-cell algae that would...