#4 Metal Filter Housing Wrench

Inside Diameter: 3.8 in.
Fits The Whirlpool Valve-In-Head Clear WHKF-DWHV
Whirlpool Opaque Whole-House Pre-Filtration Housing WHKF-DWH
Whirlpool Under Sink Drop-In Water Filtration System WHKF-DUF
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