Countertop water filters reduce a variety of contaminants. Many countertop systems use a standard 10" x 2.5" filter. We have several standard 10" x 2.5" filters listed below for you to choose from. We also carry specialty countertop replacement filters from many manufacturers. Please contact customer service if you need help finding replacement filters for your countertop filter system. We also carry an extensive inventory of countertop filtration systems from a variety of manufacturers. Go to our Countertop Filter Systems Page to see all of our countertop filtration systems.