
We have 2 reverse osmosis systems. One from Costco and one from HomeDepot. These replacement filters fit easily on both systems. The flow and pressure of the water returned to normal after replacing the filters. No complaints. The purity of the water is excellent. We use it in autoclave systems instead of tap water to avoid limescale build-up. The autoclave has a hardness/purity sensor that "confirms" the purity of the water through this filter.

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