OASE CLEARTRONIC 7W UV CLARIFIERThe ClearTronic works to promote clear water and healthy fish in your fresh or marine water aquarium Ideal for preventing disease that can affect aquarium inhabitants Effectively eliminates algae and cloudiness Quick release feature allows you to easily change the UV bulb Utilize the indicator light to safely and conveniently check your bulbs effectiveness without opening the unit All necessary fittings are included Energy efficient Made in Italy,