AllPondSolutions 11w Pond & Aquarium UV Steriliser CUV-211 collection_Dog/Dog Beds/Small Dog Beds You can test this either

You can test this either by purchasing a test kit

Mounting Clips Included

1 x Clip-on Lid

Power consumption: 10w

Clip-on Lids x 3 for Easy Access to each Filter Bay

AllPondSolutions 11w Pond & Aquarium UV Steriliser CUV-211 collection_Dog/Dog Beds/Small Dog Beds You can test this eitherThe All Pond Solutions UV Light Steriliser has a unique design which feeds the water through a special helix, meaning the water does not just run through the UV but spins inside, allowing the UV more exposure before the water exits the outlet. This form of sterilising enables increased efficiency from a more even exposure of the water to the UV. This improved UV system, the Ultra Violet Clarifier, continues to be a key element of a well filtered clear