The Whirlpool 4396510 fits in the base grille of all Whirlpool S20, S22 and S25 series refrigerators. This is the improved specification cartridge designed to remove additional contaminents from your water supply. If your cartridge fits beneath the doors at the front of the refrigerator then this cartridge will fit your refrigerator.

Removes chlorine, heavy metals, cysts and dissolved organics.

Replaces parts: Whirlpool parts 4396508, 4396510, any base grilled model. Note the 4396508 and 4396510 are fully interchangeable - the only difference is the filtration performance.