The table below shows the maximum recommended volumes of different types of pond with fish for which this UVC is suitable. Koi carp grow larger and produce more waste than other fish so if the pond has koi halve the recommended volumes shown.

Pond Type

Shaded, over 75cm av. depth

Full Sunlight

Shallow, less than 75cm av. depth.

Full sunlight & shallow

Size litres 16,200 12,150 12,150 9,112
Size gallons 3,564 2,673 2,673 2,005

Recommended Max Flow

8,100 litres (1,782 gal) / hour

Recommended Hose / Pipe sizes

Provided with multi hosetails for 19mm (0.75″), 25mm (1″), 32mm (1.25″) and 38mm (1.5″) hose. 38mm hose recommended for both inlet and outlet. If using pipe, 38mm (1.5″) is recommended.

Pressure Rating


Electrical Specification

230v, 50Hz, 18w fitted with 5m cable. Safety rating IP56 CE approved.


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