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Thank you for you question about the replacement water filter for the RF221NCTASP. The filter that should replace the standard filter is the HAF-CIN. I hope you find this information helpful. -Mimi
I would recommend:
Sorry, there was a problem. Please try again later.Thanks for your interest in Samsung's RF221NCTASP Refrigerator. This model doesn't have an internal water filtration system, and Samsung does not currently have an external filter available. I would suggest consulting with your Best Buy Appliance Team or a local plumber for help choosing an external filtration system to suit your needs. - Ms. Samsung
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