Bestion offers a wide product line of cation exchange resins/ ion exchange resin for domestic and industrial water softening including fine mesh resins, highly crosslinked resins, coarse mesh resins, low crosslinked resins and macroporous resins. In general, softening is the removal of Calcium and Magnesium to prevent hard water from scaling on piping, plumbing fixtures, bathroom surfaces and etc. It is also called the removal of hardness.