BWT’s PROFIL-IQ cannot be compared with other devices. Its unique IQ technology, enclosed in a cartridge, produces a small amount of calcite crystals, which are very effective against scaling. It does not remove the hardness from the water but it does prevent it from being deposited. The IQ treated water is then fed into the RO module—where pure water is produced with a high degree of permeate recovery. From raw water to pure water, this is done without upstream softening or anti-scalant dosing.