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Pre-Filter Set for Commercial Reverse Osmosis Systems (Stages 1-3) & MR-3021

SKU: RF-3021
In stock
  • 5 Micron Sediment Filter 20″ – Extracts suspended materials such as sediment, rust, insects, and other particles down to 5 micron. This cartridge also extends life of other, more expensive cartridges and prevents damage.
  • 10 Micron 20″ Carbon Block Filters at Second & Third Stages – Absorbs heavy chlorine byproducts such as chloramines, THM, and TCE. The double carbon briquettes filter out organic matter from water without release of carbon fines. Also this carbon block removes volatile organic compounds (VOCs), insecticides, pesticides and industrial solvents.



The APEX RF-3021 pre-filter set provides a simple, yet highly effective solution to supply your entire home with fresh, clean water for drinking, cooking, bathing and cleaning. Water passes through three stages of filtration to remove sediment, chlorine and sources of unpleasant odors and discoloration. With its wide cartridge design, this filter system can meet the needs of apartment buildings and large homes with ease. Not just for residential use, this system is also an excellent choice for larger office buildings, medical offices and food service businesses. Cartridges are engineered to allow for the quickest possible changes to keep maintenance demands to a minimum.


Warranty * Household water pressure can cause leaks and damage the surrounding building or fixtures if not properly installed. User must check all fittings for tightness. APEX assumes no responsibility for water damage due to leaks.

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