50 Watt SMART High-Output UV Sterilizer with 2" union inlet/outlets, a 5" diameter body, and a single 50 watt HO uv lamp and quartz sleeve. The 50 watt SMART HO UV offers a suggested flow rate of 1,560 GPH and a maximum flow rate of 1,980 GPH for ponds of up to 5,900 US Gallons, and for targeting waterborne Algae and harmful Bacteria. Great for Koi Ponds and Water Gardens.

NOTE: All UV Sterilizer gaskets and o-rings must be replaced annually to ensure a watertight seal.