Instant access to great-tasting water from the convenience of your kitchen faucet whenever you want it – 24 hours a day, 7 days a week. The 5-stage GROHE Blue 158.5 Gal. filter, with magnesium for an even better taste, removes all unwanted substances that will affect taste and smell of the water. It also eliminates chlorine, limescale, heavy metals and particles for a pure and fresh water taste.