If you own a Brita Hub Instant Countertop Water Filter, this 2-pack of replacement filters will keep your water clean and fresh for a full year! These filters are specifically designed to be compatible with the Brita Hub device, replacing model number CTO1. Each filter lasts up to 6 months or 120 gallons - that's serious value compared to buying filters individually. The filtration performance is impressive - it reduces chlorine, lead, mercury, fluoride, and other impurities while improving taste and odor. Installation couldn't be simpler: just remove the old filter, pop this one in, and you're good to go. No tools required, and the whole process takes less than a minute. The 2-pack means you've got a backup ready when it's time for the next change, so no last-minute trips to the store. What's really convenient is that these filters work with the Brita Hub's smart indicator that reminds you when it's time for a replacement. The water quality is noticeably better - clearer, better tasting, and without that chemical aftertaste. Whether you're using filtered water for drinking, cooking, or making coffee, these replacement filters deliver consistent results. The company stands behind their product too, with responsive customer service if you have any questions or concerns.