This powerful universal UVC clarifier removes floating algae & decimating harmful bacteria & germs suitable for ponds up to 25,
...An official Oase UVC that eliminates suspended algae (green water). It reduces harmful bacteria & pathogen levels & contains housing that is impact-resistant. It is designed in a way that makes it easy to replace the bulb & clean/replace the quartz glass. Furthermore, it offers a visual function check of the UVC that is safe for your eyes.