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18,000 hour lamp life
Hydraulically superior L-shape housing
High quality American made glassware

RK2 XFLO UV Sterilizers - Professional grade equipment for the home aquarist and pond enthusiast title

Introducing a new option in UV Sterilization

Looking for a better and more reliable UV option for your backyard pond, water feature, or home aquarium? RK2 is proud to offer our new XFLO UV Sterilizer. Our design team has a combined 60+ years experience and we meticulously worked to create the most user friendly UV solution available while ensuring users a technically sound product they can trust to get the job done right. Whether choosing our RK2 XFLO UV Steriliser with our standard output, three inch diameter model, or our high output five inch diameter model, XFLO UV has the best solution for your specific needs.

Each mirco-organism has its own UV dose or “kill rate”. Determining what micro-organism you are trying to apply UV sterilization to is key to how successful you will be in using a UV Sterilizer. The dose the UV sterilizer will produce is determined by the water flow rate through the sterilizer body and across a specific UV lamp. Accurate information from the manufacturer is a must when operating any UV sterilizer.

XFLO UV Sterilizers Features:

  • “L” Shaped flow pattern. Allows for better hydraulic mixing of incoming water. This virtually eliminates “dead” zones within the UV body and allows for more efficient UV Sterilization.
  • Unionized water ports. The 3” XFLO models are standard with 1.5” Unions while the 5” XFLO High Output models come with 2” unions.
  • Single ended UV lamp and quartz sleeve access. Makes for easy replacement of lamps and sleeves. You can now change or clean a quartz sleeve without disassembling the entire front end of the UV!
  • No twist lamp cable fittings. Remove lamp cables without the use of tools and prevents the cable from twisting while unscrewing, which could possibly damage the wires inside.
  • American-made UV lamps. XFLO standard and high-output lamps are made using hard quartz, coated, non-ozone emitting lamps. These lamps prevent “scaling” of lamp and quartz sleeves which inhibits UV light from penetrating the water.

Low Pressure Standard Output UV Sterilizers

XFLO Model Wattage NO. Lamps/Watts Dia Length Inlet/Outlet Flowrate (30mj/cm2) Flowrate (180mJ/cm2) Rec’d Aquarium Size* (Lt.) Rec’d Pond Size** (Lt.)
XFL3-18L 18 (1) 18 80mm 530mm 40mm 900 LPH 135 LPH 150 3,800
XFL3-25L 25 (1) 25 80mm 810mm 40mm 1800 LPH 230 LPH 230 7,600
XFL3-40L 40 (1) 40 80mm 1192mm 40mm 3,850 LPH 630 LPH 560 17,000
* = Aquarium Size based on 180mJ/cm Flow rates and 1 turnover per hour
**= Pond Size Based on 30mJ/cm2 Flow rates and 1 Turnover every 3-4 Hours

XFL3-40L

XFL3-40L

Low Pressure High Output UV Sterilizers

XFLO Model Wattage NO. Lamps/Watts Dia Length Inlet/Outlet Flowrate (30mj/cm2) Flowrate (180mJ/cm2) Rec’d Aquarium Size* (Lt.) Rec’d Pond Size** (Lt.)
XFL5-50H 50 (1) 50 127mm 890mm 2 5600 LPH 900 LPH 900 22,500
XFL5-80H 80 (1) 80 127mm 1270mm 2 10,200 LPH 1590 LPH 1500 38,000
XFL5-120H 120 (1) 120 127mm 1580mm 2 14,500 LPH 2270 LPH 2250 53,000
XFL5-150H 150 (1) 150 127mm 2000mm 2 22,500 LPH 3860 LPH 3800 75,500
* = Aquarium Size based on 180mJ/cm Flow rates and 1 turnover per hour
**= Pond Size Based on 30mJ/cm2 Flow rates and 1 Turnover every 3-4 Hours

XFL5-80H

XFL5-80H

Low Pressure High Output Multi-Lamp UV Sterilizers

Model Wattage NO. Lamps/Watts Dia Length Inlet/Outlet Flowrate (30mj/cm2) Flowrate (180mJ/cm2) Rec’d Aquarium Size* (Lt.) Rec’d Pond Size** (Lt.)
XFL6-100ML 100 (2) 50 153mm 890mm 80mm 9760 LPH 1,590 LPH 1500 8,000
XFL6-160ML 160 (2) 80 153mm 1264mm 80mm 18,400 LPH 3,180 LPH 3,400 17,000
XFL6-240ML 240 (2) 120 153mm 1585mm 80mm 24,980 LPH 4,090 LPH 4,200 22,000
XFL6-300ML 300 (2) 150 153mm 1943mm 80mm 39,370 LPH 6,585 LPH 6,800 36,000
* = Aquarium Size based on 180mJ/cm Flow rates and 1 turnover per hour
**= Pond Size Based on 30mJ/cm2 Flow rates and 1 Turnover every 3-4 Hours

XFL6-300ML

XFL6-300ML