Review on Axeon Polyamide Composite Drinking Membrane by Robby Fingaw

I have two of these in parallel in a heavy duty reverse osmosis unit with a 200+ gallon per day pump. The TDS outlet meter reads 2 through 5, just like my old Dow Filmtec sensors read my softened well water. The flow then flows through the DI resin cartridges and displays 0 TDS at the output. I use it for the top of a reef tank and for saltwater feeding. I will buy more of these in the future.