Grohe Blue: The Premium Filtered Water Faucet System from Germany
Grohe (Hemer, Germany, owned by LIXIL Corporation) manufactures the Grohe Blue Home ($500--$900) and Grohe Blue Professional ($800--$1,400) -- integrated kitchen faucet and water filtration systems that deliver filtered, chilled, and sparkling water directly from a single kitchen faucet. Unlike traditional under-sink filters with a separate dedicated faucet, the Grohe Blue integrates the filtered water outlet into the main kitchen faucet body itself. Grohe Blue is the market leader in the premium integrated faucet-filter category in Europe and is growing in the US luxury kitchen segment.
Grohe Blue Home: What It Does
The Grohe Blue Home delivers three types of water from one faucet: standard tap water, filtered still water (through an active carbon block filter), and filtered sparkling water (from an integrated CO2 cylinder). The carbon block filter removes chlorine, VOCs, and microplastics. NSF 42 certified. The CO2 cylinder ($15--$20, available at Williams-Sonoma, Illy, and online) carbonates the filtered water at adjustable carbonation levels. The Grohe Blue replaces both a kitchen faucet and a separate water filter, justifying its premium price ($500--$900 for the faucet + filter system) for households who value aesthetic integration.
Grohe Blue vs. Traditional Under-Sink Filter
Grohe Blue ($500--$900) vs. APEC ROES-50 ($200--$260) + separate Kohler or Delta kitchen faucet ($200--$600): total cost comparison is closer than it appears for premium kitchen installations. The Grohe Blue's advantage is single-faucet integration and sparkling water on demand -- features no traditional under-sink system offers. Its disadvantage: the Grohe Blue filter is an NSF 42 carbon block only (no NSF 53 lead, no RO membrane) and does not reduce TDS. For households who want drinking water purity (lead, nitrate, PFAS removal), an APEC or Waterdrop RO provides better filtration at lower cost.