The Carbon Filter protects the RO membrane in a Pure Water System.
The size of the water filter in your purification system is important to know.
The Carbon filter protects the membrane from damage by the chlorine in tap water.
Change yours before it is used up….
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https://www.jracenstein.com/c/water-fed-cleaning/replacement-filters-and-housings/c1690
https://www.jracenstein.com/c/replacement-filters-and-housings/filter-inserts-into-housing/c2149
https://www.jracenstein.com/c/pure-water/protool-pure-water-rodi-cart-ss/c4387
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