The alternative is a larger whole-house filter that taps into your main water line.

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Q: I want to install a water filter for my kitchen faucet. What simple information can you give me to help understand my filter options?

A: Basically, you can go in two directions with filters.

First, a whole-house filter is a larger water filter that is installed on the main water line of your house. All the fixtures in the house can benefit, including the kitchen faucet.

Option two is a point-of-use filter for only the kitchen faucet. This is a smaller version of a whole-house filter, installed on the cold-water line under the kitchen sink.

Ed Del Grande is a master plumber and contractor and is the author of the book “Ed Del Grande’s House Call.” Send questions to