Drinking Water Filters

This article outlines the appropriate filter model for your system, along with the steps to ensure that replacing the filters is a quick and easy process.

Filter Information

Your system’s model number is posted on a rating decal under the top cover or exterior of the unit. Purchasing information can be found on whirlpoolwatersolutions.com, or by clicking on the filter model below:

System:	Filter Replacement	Filter Life:
WHER25 / WHAROS5	Pre/Post Filter - WHEERF Membrane - WHEERM	Pre/Post filter - 6 months Membrane - 2 to 3 years
WHED20 / WHADUS5	WHEEDF	6 months
WHEMB40 / WHAMBS5	WHEMBF	6 months
WHAFFS	WHAFFF	6 months

Replacement Steps

1. Beginning with the filter closest to the water supply, remove your filters in order by unscrewing them counterclockwise. There is no need to turn your supply water off, because each filter connection has an auto shut-off poppet stem to stop water leaks.

2. Discard the cartridges properly (check with your local facility for recycling options).

3. Install the new filter cartridges:

          a. Reverse Osmosis units – replace the filters in reverse order starting with the Post filter, then Membrane, then Prefilter.

          b. Filtration units – replace filters reverse order starting with the filter closest to the faucet and working backwards.

4. If your filters come with a replacement battery, unscrew the base of the faucet and put a new battery in the compartment. These batteries are a timer for your next filter change.

5. Purge the system by leaving the faucet for the unit open for 10 minutes. *If replacing the Membrane on an RO unit, purge for 24 hours*. Purging the system allows any loose activated carbon particles to be flushed from the new filters.