Review on 🚰 Enhance Water Purity with 5 Stage Reverse Osmosis Filter Replacement Set (RFK-DRO5, Formerly ROFK5) by Katie Washington

This is a handy package for most standard 4-stage reverse osmosis sub-systems. An exception to this is the reverse osmosis film, which is usually changed every 1-2 years depending on the water quality. For the price, this is all you need to update your filters every 6 months. Just make sure you throw away the 1st water tank after every filter change or you will end up with black water from dust on the carbon filters.