Moen cartridges install in the valve stems of faucets to filter the water. The cartridges capture hard minerals and impurities that can cause foul odors and give water a gritty, metallic taste. Depending on the water conditions, filter cartridges should be replaced three or four times a year.
Replacing the Moen cartridges in a faucet takes about half an hour with common household tools. No special plumbing experience is required.
Things You'll Need
- Replacement Moen cartridges
Shut off the water by turning the valve knobs clockwise beneath the sink. Failure to turn off the water will cause the faucet to spew like a fire hydrant when the Moen cartridges are removed.
Pop off the plastic caps on the tops of the water faucet handles to reveal a screw underneath each cap
Remove the screw in the top center of the faucet handles, then lift the handle straight off. Save these parts.
Loosen and remove the brass nut underneath each handle with the pliers by turning counter-clockwise. This nut holds the Moen cartridge in place.
Grab the end of the cartridge stem with pliers and pull straight out of the faucet valve. You may now replace the cartridge.
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