How to Install an Under-Sink Water Filter – This Old House

This Old House plumbing and heating expert Richard Trethewey shows how to add a filtered cold-water drinking faucet to a kitchen sink. (See below for a shopping list and tools.)

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Full episode:

How to Install a Kitchen Sink:

How to Replace an Old Faucet:

How to Paint Kitchen Cabinets:

Watch the How-To Videos playlist:

Shopping List for How to Install an Under-Sink Water Filter:
– under-sink water filter, typically comes with necessary fittings, tubing and connectors
– teflon tape, used to seal threaded fittings
– plumber’s putty, used to seal faucet to sink deck

Tools for How to Install an Under-Sink Water Filter:
– pliers, two pairs for tightening connections
– adjustable wrench, used for tightening compression fittings
– plastic tubing cutter, used to cut ΒΌ-inch plastic tubing
– drill/driver, used to screw filter housing to inside of cabinet

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