Installation Instructions

Flush The Filter
Turn the handle to vertical position and run cold water
through the filter until the meter indicator displays “ooo”.
During the flush period, the meter will indicate FLH. The
flush cycle prepares the filter for use and washes any
loose particles from the filter. Following the flush period,
the filter meter will begin to count up as water goes
through the cartridge.
WFFMC100/WFFMC300
2
Water Temp < 100F/38C
Do Not Filter Hot W
ater
Installation for the WFFM350 (continued)
Install Filter Cartridge
Open the filter cartridge package and remove the cartridge.
Unscrew the filter cover.
Insert the filter cartridge into the housing. The DuPont logo
should face up.
Push in until snug. Reattach the filter cover.
NOTE: The selector knob must be in the vertical water position to remove the cartridge.
If the cartridge is difficult to remove, try turning on the water while keeping the selector
knob in the filtered position.