Amazon.com: T33 Inline Coconut Grade Activated Carbon
T33 Inline Coconut Grade Activated Carbon Membrane Filter T hese are filters a Standard Reverse Osmosis Water Filtration Unit or any type of Ice Machines, Water Coolers RV & many other applications. I nline Coconut Grade Activated Carbon Filters are also known as polishing filters, because they would usually be the last stage of any standard Reverse Osmosis circuit.
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