Eliminate algae from ponds and maintain crystal clear water destroy algae with Anjon UV clarifier. UV clarifiers create a healthy and clear pond environment for koi fish by eliminating free floating organic materials. Anjon UV clarifiers are rugged, industrial strength that can be used for residential, commercial and municipal projects. The UV-C bulb provide 9,000 hours of algae control! The reflective stainless-steel sterilization chamber that boosts UV-C effectiveness by nearly 35%. The oversized inlet and outlet ports, plus 3” diameter housing produces better flow rates. Available in 40, 55 and 75 watt sizes.