“Is this filter correct for Whirlpool side by side refrigerator model #WHS571CIHZ04? Is it necessary to use the air filter or optional? I don't know if I really need it.”

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• Hello! The model number you have provided, WHS571CIHZ, is not valid. If you can please verify, we would be happy to review this further.

  Answered by WhirlpoolTeam 3 years ago

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• I'm not sure about that model. Filter is necessary for clean water.. Works for my model.

  Answered by Anthony 3 years ago

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