It's a 5-stage filter:

來源: LAChinese 於 2016-06-08 16:57:45 [] [舊帖] [給我悄悄話] 閱讀數 : (1344 bytes)
回答: I bought it for $180 plus tax at Homedepot. 由 LAChinese 於 2016-06-08 16:47:11

1st Stage: NSF Certified 5 micron high-capacity polypropylene sediment filter held in a transparent housing
2nd Stage: NSF Certified GAC Carbon Filter
3rd Stage: NSF Certified CTO Carbon Filter
4th Stage: NSF Certified High Rejection 75GPD TFC reverse osmosis membrane
5th Stage: NSF Certified Total Polishing Inline Carbon

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