All our filters are certified to meet NSF/ANSI Standerd by IAPMO.

Replacement For
Water Sentinel WSW-4 Compatible Refrigerator Water Filter.
Choose Your Perfect Filter

Water Sentinel WSW-4 Compatible VOC Refrigerator Water Filter
Model: SGF-W31-1PacK
$28.00 CAD/Filter
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Water Sentinel WSW-4 Compatible Pharmaceuticals Refrigerator Water Filter
Model: SGF-W31 Rx-1PK
$32.20 CAD/Filter
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