Many undersink filters come with a separate faucet mount, allowing you to switch between filtered and unfiltered water.

Filters Fast carries a wide variety of undersink water filter systems, along with many compatible filter cartridges. With so much choice, we thought you might need some help narrowing it down.

Our Buyer’s Guide on Undersink Filters includes reasons to buy an undersink filter system, along with the contaminants these types of systems typically remove, basic installation instructions, and a list of some of our most popular systems ranked “good, better and best.” Take a look, and if you have any more questions, feel free to give us a call or send an e-mail and we’ll be happy to help!