Jebao 55W UV Clarifier Sterilizer Koi Fish Pond Tank Aquarium 55 Watts UVC Light AC 110-120V / 60Hz 55 Watts Recommend flow rate 4400gph Suitable for ponds up to 15000 gallons or 800 gallons aquarium Inlet/outlet size: 3/4", 1", 1-1/4" & 1-1/2" 22 ft cord and sealed plug