20
Halcyon 20" Replacement Sediment Filter $3.98
Compatible with SR Aquaristik 20-inch RO/DI systems; works with almost all competitors 20” systems. 5 micron Made with FDA compliant materials  The SR Aquaristik HALCYON 5 Stage Professional Grade/Store-use RODI System 20" Sediment Filter Cartridge is ideal for use in most commercial aquarium reverse osmosis units. Ideal for removing fine debris from tap or well water. Manufactured using the highest quality materials for optimum performance.
SR Aquaristik Halcyon 20
Halcyon 20" Replacement Carbon Filter $9.98
Compatible with all SR Aquaristik 20-inch RO/DI systems; works with almost all competitors 20” systems 1/2 micron carbon block filter Made with FDA compliant materials  The SR Aquaristik HALCYON 20" Carbon Block Filter is ideal for use in most commercial aquarium reverse osmosis units. Ideal for removing chlorine, chloramine and odors from tap or well water. Manufactured using the highest quality carbon for maximum chlorine, chloramine, VOC and general chemical filtration performance.
SR Aquaristik HALCYON - 20
20” Refillable DI Resin Cartridge $14.98
  For use in SR Aquaristik HALCYON 5 Stage 20" RODI Unit Excludes Filter Media Refillable Chamber   SR Aquaristik HALCYON - 20" Refillable DI Resin Cartridge is ideal for use in most commercial aquarium reverse osmosis units.
SR Aquaristik Halcyon 20
Halcyon 20" Deionization Replacement Cartridge with Color Change Resin $49.98
Packaged with color changing resin Vacuum packed in Mylar to preserve freshness Nuclear grade SR Aquaristik Halcyon Deionization Replacement Cartridge with Color Changing Resin is ideal for replacing exhausted resin in RO/DI filter systems. Professionally packed; saving time, effort and mess over refilling cartridges with bulk resin.  
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