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Sorry for the delay and thank you for your patience. My name is Michael. I will be helping you with your question today. I am an Expert in the Consumer Electronics category. If you feel this is not the best category for your question, let me know and I will forward it to the appropriate group of Experts.
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You can get these from Statewide Appliance. Here is the web page with the parts and contact information:
Please let me know if you have any questions.
I found a cross reference to NPCWD00134X, which is the filter for a different model, but that appears to be discontinued. Both say "replaced by long life filter", but I am unable to find a reference to such a filter.
Actually, I did find a reference to it, but I cannot be sure that it fits your unit. You might want to call the company to see if they have it in stock and then compare the dimensions of your filter to it.
Actually... I do think that might fit. I looked at the diagram of the split-duct that uses that one, and yours, and the sizes appear to be the same.
You should have a way to request a phone call from your side, which can then be made by an Expert in your area.