Aqua UltraViolet UV Clarifier - 8 wattUV Clarifiers eliminates green water algae blooms without any chemicals. It maximizes the contact time between algae and hight UV outputs. The UV bulb targets algae in a smaller shorter space, allowing the UV light to penetrate deeper into the water, increasing efficiency. As water travels through the narrow chamber, water is directed to the UV bulb. The bulbs effectively neutralize single celled algae particles that can then be removed by a