10 micron polypropylene sediment filter works like a strainer, capturing suspended particles such as sand, silt, rust, dirt, pipe residue and other unwanted debris. The Sediment filter’s primary functions are to clarify the water and extend the life of the carbon filters and membranes downstream. 

Granular Activated Carbon filter uses a process called adsorption. Contaminants are attracted and adhere to the carbon material like velcro. This filter removes an abundance of impurities from the water, including chlorine, VOCs, THMs, and bad taste and odor. The Pre Carbon filter also protects and extends the life of the Ultrafilter Membrane. 

A semi-permeable membrane where only water molecules are able to pass through. The pores in the membrane are so small, they can trap impurities as tiny as 0.0001 micron. This includes all dissolved solids (TDS) such as salt, trace minerals, ions, fluoride and microplastics. Reverse Osmosis filtration is used when removing everything from the water is desired.

20x40 mesh Granular Activated Carbon filter works as a "polishing" filter, improving taste and odor.