UV Clarifiers or UV pond filters are designed to improve water clarity especially when it comes to 'green water' by causing the algae cells to clump together making it easier to be removed by a pond filter. We have a great selection of pond UV clarifiers and UV pond filters for you to choose from that cater for different pond capacities (volumes). We also stock a full range of pond valves, pipework & fittings to make adding a pond UV to your system a breeze.