Because of growing concerns about the purity of tap water, millions of people have chosen to invest in under-sink water-filtration systems to help provide their families with pure, clean drinking water. While over-the-sink purifiers can work well, they’re not as strong or as long-lasting as under-the-sink ones. Plus, the under-the-sink ones take up less space.


Step 1: Turn off the water supply to the kitchen sink area. If your home doesn’t have a specialized shut-off valve for the kitchen, then you’ll have to shut it off for the whole house.

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