RK2 Systems
Creating Quality Water
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Filtration Systems

RK150PE-FS

RK150PE-FS

RK10AC-FS

RK10AC-FS

RK2 Filtration Systems Are designed to be both a biological and particulate filter in one. Creating quality water low in nitrates, suspended particulates, dissolved organics while enriching the water with oxygen. Water that enters the filtration system flows through fluidized sand cultivating not only aerobic nitrifying bacteria, but also facultative anaerobic denitrifying bacteria. This means they may have the capability to remove not only ammonia and nitrite, but also nitrates. Once the water exits the fluidized sand filter it enters into a protein fractionator which removes suspended particulates and dissolved organics and injecting oxygen back into the water before returning to main aquarium or reservoir.

Model Flow Rate Fractionator/Minutes of Dwell Time Height Basal Dimensions Media Capacity lbs./kgs Quantity/FSF Size
Model Number
Protein Fractionator Diameter/Model Number
RK10-FS-FW 13 GPM @ 1.5 minutes 86" 30" x 36" 30 lbs./13.6 kgs
.3 Cubic Feet
1-6" diameter FSF unit
Model RK10AC-FSF
10" Diameter
Model RK10AC
RK25-FS-FW 25 GPM @ 1.5 minutes 86" 30" x 36" 50 lbs./22.7 kgs
.5 Cubic Feet
1-8" diameter FSF unit
Model RK40AC-FSF
14" Diameter
Model RK25PE
RK50-FS-FW 50 GPM @ 1.5 minutes 99" 36" x 42" 65 lbs./29.5 kgs
.65 Cubic Feet
1-8" diameter FSF unit
Model RK40AC-FSF
20" Diameter
Model RK50PE
RK75-FS-FW 70 GPM @ 2 minutes 102" 43" x 50" 100 lbs./45.4 kgs
1.0 Cubic Feet
1-10" diameter FSF unit
Model RK75AC-FSF
24" Diameter
Model RK75PE
RK75HF-FS-FW 140 GPM @ 1 minute 99" 75" x 42" 200 lbs./90.8 kgs
2.0 Cubic Feet
2-10" diameter FSF unit
Model RK75AC-FSF
24" Diameter
Model RK75PE-HF
RK150-FS-FW 155 GPM @ 2 minutes 102" 102" x 44" 200 lbs./90.8 kgs
2.0 Cubic Feet
2-10" diameter FSF units
Model RK75AC-FSF
36" Diameter
Model RK150PE
RK300-FS-FW 290 GPM @ 2 minutes 114" 138" x 66" 400 lbs./181.6 kgs
4.0 Cubic Feet
4-10" diameter FSF units
Model RK75AC-FSF
48" Diameter
Model RK300PE
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