: Offers modern, tankless countertop and under-sink units like the Waterdrop G5P500A Go to product viewer dialog for this item. Best Buy : Carries niche countertop purifiers such as the AquaTru Carafe Go to product viewer dialog for this item. , which does not require plumbing. Specialty Manufacturers (Direct Purchase)

and Express Water , often featuring online-only deals from third-party specialty sellers.

Buying directly from manufacturers often provides better warranties and expert customer support. Alkaline Water Machine - Amazon.com

Alkaline water machines, ranging from under-sink reverse osmosis (RO) systems to advanced countertop ionizers, are widely available through major retailers, specialty health stores, and direct manufacturer websites. Major Retailers & Online Marketplaces

Amazon.com: Alkaline Water Machine. $90 to $150. $150 to $200. $200 & above. Get It Fast. Get It Today. Get It by Tomorrow. Amazon.com MXL-9 Under-Counter Ionizer - Best-Selling Hydrogen Unit