allpondsolutions 9w UV Light Steriliser for Pond & Aquarium - CUV-209 Fish Tank & Pond Clarifier - Helps Remove Algae and Greenwater

Suitable for Pond Sizes up to 4,000 Litres. Maximum Flow Rate 4000L/H - Through Flow sterilisation at 1500 L/H Clear Water - Adding a UV Steriliser to your pond or aquarium will help keep your pond or aquarium water looking crystal clear. UV lights need to be used with a pond filter or aquarium filter. UV Sterilisers work by clumping the small algae particles together for the filtration system to then catch the algae within the filter helping to keep the water crystal clear. UV Lights should have the bulbs changed once a year for pond preferably in the spring and six monthly for aquariums. Inlet / Outlet Adapter Sizes: 0.5 0.75 1 1.25 & 1.5 / 19mm, 25mm, 32mm, 38mm