The description says that the filters are good for 1-3 months, but in the photos - 3-6. Well I'm a month and a half and the #1 Grinding Filter still doesn't give me a crap on water usage. Where can I buy replacement filters for it? They're good as long as they last and I still pay about $5-10 a month for a filter when I can replace them, but it sucks they don't last too long :/
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