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Halcyon 20" Replacement Sediment Filter

$3.98
Compatible with SR Aquaristik 20-inch RO/DI systems; works with almost...
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Halcyon 20" Replacement Carbon Filter

$9.98
Compatible with all SR Aquaristik 20-inch RO/DI systems; works with...
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20” Refillable DI Resin Cartridge

$14.98
  For use in SR Aquaristik HALCYON 5 Stage 20"...
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Halcyon 20" Deionization Replacement Cartridge with Color Change Resin

$49.98
Packaged with color changing resin Vacuum packed in Mylar to...
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