PP
PP
Notice
Do not use with water that is microbiologically unsafe or of unknown quality.
Caution
Filter housing must be protected against freezing temperatures, frost, snow, sleet, and ice.
Exposure to these elements can produce cracks and product failures.
Caution
This product has a limited service life. Because of the product's limited service life and to pre-
vent costly repairs or possible water damage, we strongly recommend that the head of the fi lter
be replaced every ten years.
Caution
Turn off water supply to head and remove cartridges if it must be left unattended for an extend-
ed period of time.
• For cold water use only. Do not use on hot water line.
• After prolonged periods of non-use (such as during a vacation) it is recommended that the
system be fl ushed thoroughly. Let water run for 5–6 minutes before using.
• The fi lters recommended for use with this system carry a limited service life. Changes in taste,
odor, color, and/or fl ow of the water being fi ltered indicate that the cartridge should be replaced.
• Make certain that installation complies with all state and local laws and regulations.
• Designed for residential use only.
MS
UF
MS
UF
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EFU23-A
EFU23D-A
1000003973 (Rev. A - 05/17)