I acquired this today and am told it is a 125gpd Kent marine unit, it was used in a saltwater store as the RODI unit, the seller told me he just changed the filters like 6 weeks ago and they should be good for a while, I was just wondering if you can tell by the pics if they are close to needing to be replaced. Thanks all. Im gonna take a sample of the water to barbara this week for a TDS check.
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