Mar 06, 2019 - 06:56 AM
Thank you for contacting Biobidet Support.
The carbon and iodine filters have no real significant difference. The carbon filters are designed and manufactured for the Luxury Class bidets such as USPA-6800 and the Iodine filters are made for the Premire Class bidets such as BB-2000. The threading is different between these filters.
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Source: Carbon vs Iodine Filters