Quick Change | 5 Stage RO/DI 12 Month Water Filter Cartridge Replacement Pack (1-11EQ5-12M-DI)
- Stage 1- 1x 1uM Dirt Sediment Filter (ST-01)
- Stage 2- 1x GAC Filter (ST-33)
- Stage 3- 1x 5uM Carbon Block (ST-CTO)
- Stage 5- 1x Mixed Bed Deionising Resin (DI) (GT4-55-DI) (For RO/DI Systems Only)
Stage 1: The 1 Micron Sediment Cartridge (2-46-1 ST-01) (Replace Every 6 Months)
The first stage is a 1 Micron (uM) Sediment filter composed of 100% melt-blown polypropylene fibre. This cartridge helps to help protect the carbon pre-filters and reverse osmosis membrane from physical damage caused by particulate matter such as sand, dirt, silt, plant spores, and pollen. Physical contaminants such as these (which can surprisingly be found in most municipal water supplies), tend to clog up filter system components causing reduced water flow, lower osmotic pressure, diminished filtration efficiency, and ultimately, inferior water quality. Changing this filter every 6 months is vital!
Stage 2: The Granular Activated Carbon (GAC) Pre-Filter Cartridge (4-55-GAC ST-33) (Replace Every 6 Months)
The second stage is a high-grade granular activated carbon pre-filter. This type of loosely-packed carbon enables a high level of water flow through the system, whilst "taking the first hit" to absorb harmful organic chemicals and contaminants. Keeping up with regular maintenance of this pre-filter (changing it every 6 months) helps to extend the life of all filters that come after it, including the reverse osmosis membrane.
Stage 3: The 5 Micron Coconut Carbon QC Cartridge (4-55-CTO ST-CTO) (Replace Every 12 Months)
The third stage is a 5-micron high-grade coconut carbon block pre-filter. Similar to the GAC filter, but with a unique carbon block matrix for maximum surface area and contact time, this special carbon cartridge takes the biggest load of contaminant removal, prior to the membrane. Replace every 12 months.
Stage 5: (For RO/DI Systems Only) The Mixed Bed Deionising Resin (DI) Water Filter Cartridge For Demineralised Water, Low EC, Max Total Dissolved Solids (TDS) Reduction (GT4-55-DI)
Creates RO/DI water for Dental, Medical, Cosmetic, Gardening, Hydroponic, Aquaponic, Aquarium & Brewing applications & not recommended for drinking without remineralisation. Depending on how much water you use, you may wish to change this cartridge on a 6-monthly basis. The final stage features a Virgin Mixed Bed Deionising Resin, composed of highly purified acid cation and base anion resin that creates a higher level of purity than using RO filtration alone. Note that the higher the TDS of the incoming feedwater, the higher the residual percentage of TDS that will be left post-filtration by the RO. Thus, the purpose of the DI filter is to "polish" the water and pick up any residual TDS (salts) left. This cartridge produces consistent results where the highest quality of pure water is required, with minimum ionic and non-ionic contamination.





