Capacities range from small personal bottles (about 17 fl oz or 24 fl oz) up to larger bottles around 62 fl oz. Filtration pitchers and dispensers commonly list capacities such as 7 cups and 27 cups.
Filter life is described either in months or in gallons depending on the product: some filters are listed as lasting about 6 months (or ~120 gallons), others about 2 months (or ~40 gallons), and one pitcher lists an estimated 15-gallon lifespan.
Care instructions vary by item: some listings specify hand wash only, others indicate dishwasher-safe (top rack), and one pitcher notes that care instructions are not provided.
Review summaries commonly report improved taste and removal of chlorine and odors, with praise for producing very clean, great-tasting water and effective TDS reduction.
Some pitchers include a built-in or included TDS meter to check dissolved solids, and dispensers list sticker or electronic filter indicators that show when to change the filter.
Listings show a variety of designs: flip-top lids and one-handed spouts on dispensers, drink-thru or locking lids on tumblers, and removable straws or sip spouts on insulated tumblers.