I installed a central supply filter, living in an area with very poor water quality, both in terms of hardness, high salt content, and sediment issues (mud, etc.). First of all, the water is non-potable and I only drink bottled water. I installed a double filter, with a cartridge and a sediment filter for "softening" the salts. The result is extremely satisfying. It significantly reduced the sediment and softened the water, preventing salt buildup on faucets, showers, etc. It's worth its money!!!! While my neighbor complains about reddish water in his faucets, mine is just cloudy.

It did not reduce the flow at all and it is evident with the naked eye that it keeps the pebbles and mud.