Under-Sink Reverse Osmosis Drinking System

Reverse osmosis forces water through a membrane with pores fine enough to reject dissolved solids — the things no cartridge strainer can touch. An under-sink unit stages sediment and carbon prefilters ahead of the membrane, stores the finished water in a small pressurized tank, and serves it through its own faucet at the sink.

The point-of-use design is deliberate. Drinking, cooking, and ice are where dissolved contaminants matter most, so treating that one line to the highest standard costs a fraction of treating the whole house to it — and the membrane lasts because prefilters shoulder the chlorine and grit.

For Mobile-area customers the membrane is the direct answer to the PFAS question raised by the 2022 detections above the EPA advisory, alongside lead and the chloramine taste in ice. It installs in a morning at $1,895, carries our one-year parts and labor warranty, and the free in-home test tells you first whether your water even needs it.