The OROS-6PK-80 complete replacement filter set (stages 1-6) for reverse osmosis systems includes (1) 5 micron polypropylene sediment filter, (2) 5 micron coconut shell carbon block filters, (1) high-quality TFC 80GPD membrane, (1) inline coconut shell post carbon filter with ¼ inch O.D. quick connect fittings and (1) inline calcite alkaline remineralization filter with with ¼ inch O.D. quick connect fittings. Compatible with OROS-80-ALK reverse osmosis system and standard sized 80GPD under-sink reverse osmosis systems. The filters are industry standard sized filters to fit in under-sink reverse osmosis systems with standard 10 in. filters and standard 12 in. RO membrane.
Depending on usage and feed water quality, the pre-filters (stages 1-3 and 6) are typically replaced every 6-12 months, the post-carbon filter (stage 5) is replaced every 12-24 months and the reverse osmosis membrane (stage 4) is replaced every 2-3 years.
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