Review on Enhance Water Filtration with Aquaboon 4 PACK Micron Coconut Cartridge by Troy Zelazny

I use them in my reverse osmosis water filter system. I only have a 3rd stage and the reverse osmosis membrane needs to be dechlorinated. So I use one for pre-filtering (sludge and chlorine removal) and as a post-filtering (final polish). Since the pre-filter does most of the work, I replace the post-filter with the pre-filter and add a new one of the theses to the post-filter. I do this every 3 months and the water has been great. Great price for 4.