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I bought a couple WF3CB filters in the blue box and they would not lock in. I bought the same part # in a red box and it locked in just fine.
Sorry, there was a problem. Please try again later.They are the same, just different packaging.
Sorry, there was a problem. Please try again later.Hi, Joel. Thanks for reaching out. It's still us, we’ve updated our packaging to the red box. Feel free to reconnect with any additional questions about our water filters. Our Customer Care Department can be reached by dialing 800-374-4432, and available Monday through Friday from 8:30 am-8pm EST. Regards-Derrick
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