
SR Aquaristik Compact 3 Stage RO/DI System Filter Replacement Kit
$45.98
Compatible with SR Aquaristik Compact 3 Stage Reverse Osmosis System and most standard compact style Reverse Osmosis systems.
Replacing your COMPACT 3 stage RO filters is as easy as 1,2,3!
Set Includes:
1 x SR Aquaristik Replacement 50GPD RO Membrane
SR Aquaristik Replacement 50GPD RO Membrane is ideal for removing (TDS) Total Dissolved Solids from water
1 x SR Aquaristik Replacement Inline Sediment Filter
SR Aquaristik Replacement Inline Sediment Filter is ideal for use in most aquarium reverse osmosis units. Ideal for removing fine debris from tap or well water. Manufactured using the highest quality materials for optimum performance.
1 x SR Aquaristik Replacement Inline Carbon Block Filter
SR Aquaristik Replacement Inline Carbon Block Filter is ideal for use in most 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.
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4 Stage RO / DI Purification System Filter Replacement Kit
$62.98
Compatible with SR Aquaristik HALCYON - 4 Stage Reverse Osmosis / Deionization Purification Systems. Replacing your HALCYON 4 stage RODI unit filters is a breeze with our 4 stage RODI replacement filter set!
Set Includes:
1 x SR Aquaristik Replacement 50GPD RO Membrane
SR Aquaristik Replacement 50GPD RO Membrane is ideal for removing (TDS) Total Dissolved Solids from water
1 x SR Aquaristik Halcyon 10" Sediment Filter
SR Aquaristik Replacement Universal Sediment Filter is ideal for use in most aquarium reverse osmosis units. Ideal for removing fine debris from tap or well water. Manufactured using the highest quality materials for optimum performance.
1 x SR Aquaristik Halcyon 10" Carbon Filter
SR Aquaristik Replacement Universal Carbon Block Filter is ideal for use in most 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.
1 x SR Aquaristik Halcyon DI Replacement Cartridge with Color Change Resin
The 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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Halcyon 5 Stage RO/DI Purification System Filter Replacement Kit
$227.90
$299.98
Compatible with SR Aquaristik HALCYON - 5 Stage Reverse Osmosis System Deionization Purification System. Replacing your HALCYON 5 stage RODI unit filters are a breeze with our 5 stage RODI filter replacement set! This complete set includes 1 replacement filter for each stage of your 5 Stage Reverse Osmosis Deionization System.
Set Includes:
· 2 x 100 GPD RO Membrane
· 1 x 20” Sediment Filter Cartridge
· 1 x 20” Block Carbon Filter
· 1 x 20” Refillable DI Resin Cartridge
· 1 x 5L Mixed Bed Color Changing DI Resin

SR Aquaristik Halcyon LG R/O Membrane
from $29.98
Replacement Membrane
Removes (TDS) Total Dissolved Solids
Fits Most Standard Reverse Osmosis Systems
The SR Aquaristik Halcyon Reverse Osmosis Membrane is ideal for removing (TDS) Total Dissolved Solids from water. It is compatible with SR Aquaristik Halcyon 4 stage R/O DI Systems, Compact 3 Stage R/O Systems, and most standard R/O and R/O DI Water Systems.
Available in 50GPD and 100GPD membranes.
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SR Aquaristik Compact Inline Sediment Replacement Cartridge
$5.98
Traps Fine Debris
5 Micron
Fits Most Standard Reverse Osmosis Systems
SR Aquaristik Replacement Inline Sediment Filter is ideal for use in most aquarium reverse osmosis units. Ideal for removing fine debris from tap or well water. Manufactured using the highest quality materials for optimum performance.
Product Video:

SR Aquaristik Compact Inline Block Carbon Replacement Cartridge
$7.98
Removes Chlorine
High Quality Carbon
Fits Most Standard Reverse Osmosis Systems
SR Aquaristik Replacement Inline Carbon Block Filter is ideal for use in most 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.
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SR Aquaristik Halcyon 10" Sediment Filter
$1.98
Compatible with all SR Aquaristik 10-inch RO/DI systems; works with almost all competitors 10” systems.
5 micron
Made with FDA compliant materials
SR Aquaristik Replacement Universal Sediment Filter is ideal for use in most aquarium reverse osmosis units. Ideal for removing fine debris from tap or well water. Manufactured using the highest quality materials for optimum performance.
Compatible with all SR Aquaristik 10-inch RO/DI systems; works with almost all competitors 10” systems.
5 micron
Made with FDA compliant materials
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SR Aquaristik Halcyon 10" Carbon Filter
$4.98
Compatible with all SR Aquaristik 10-inch RO/DI systems; works with almost all competitors 10” systems.
1/2 micron carbon block filter
Made with FDA compliant materials
SR Aquaristik Replacement Universal Carbon Block Filter is ideal for use in most 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.
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SR Aquaristik 10” Chloramine Removal Cartridge
$14.98
Removes large concentrations of chloramine and chlorine
Works with most 10” standard reverse osmosis systems
Contains high quality catalytic carbon
The SR Aquaristik Chloramine Removal Cartridge is important to use when your tap water or water that needs to be treated contains chloramine.
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SR Aquaristik Halcyon 10" DI Replacement Cartridge with Color Change Resin
$24.98
Contains nuclear grade color changing resin
Vacuum packed to preserve freshness
Brings TDS to 0
The SR Aquaristik Halcyon 10" 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.
Package with color changing resin
Vacuum packed in Mylar to preserve freshness
Nuclear grade
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SR Aquaristik 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" 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" 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.

SR Aquaristik 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 Color Changing DI Resin
from $23.98
$109.98
Color changes from blue to tan when exhausted
Ideal for refilling prepacked DI cartridges
Vacuum packed to preserve quality and freshness
SR Aquaristik bulk nuclear grade Color Changing Mixed Bed DI Resin is ideal for replacing exhausted resin in pre-packed DI cartridges. Resin changes color as it becomes exhausted, letting you know quickly and efficiently when the resin needs to be changed. DI resin is necessary for reducing TDS to 0 normally used after reverse osmosis filtration.