Product Code: RRL30284
The Lifegard Aquatics QL-Series 15 Watt UV Sterilizer is for aquariums up to 75 gallons and ponds up to 1,100 gallons. Requires a pump with a flow rate less than 240 gph.

Product Code: RRL30296
The Lifegard Aquatics QL-Series 25 Watt UV Sterilizer is for aquariums up to 130 gallons and ponds up to 2,360 gallons. Requires a pump with a flow rate less than 760 gph.

Product Code: RRL30302
The Lifegard Aquatics QL-Series 40 Watt UV Sterilizer is for aquariums up to 260 gallons and ponds up to 4,725 gallons. Requires a pump with a flow rate less than 1500 gph.