The OASE Clear Tronic 7W UV Clarifier works to promote clear water and healthy fish in your fresh or marine water aquarium. It reduces free floating algae and cloudy water, and it prevents disease that can affect aquarium inhabitants.

• Quick-release feature allows you to easily change the UV bulb
• Utilize the indicator light to safely and conveniently check your bulb's effectiveness without opening the unit
• All necessary fittings are included
• Energy efficient
• Made in Italy, backed by German engineering
• Fresh and marine water compatible
• For external use only