Cut through marketing with verified NSF/ANSI certifications to choose a countertop filter matched to your contaminants, space, and true cost-per-gallon.
Identify which NSF certifications matter for coffee, verify flow rate, and map them to your water profile to improve flavor, protect gear, and save money.
Compare certified reverse osmosis performance, PFAS reduction, and true cost-per-gallon to pitchers, with guidance on who benefits and who should skip.
