Photo 1 of 2-Pack FLT4825 True HEPA Air Purifier Filter B Replacement Compatible with GermGuardian AC4300BPTCA, AC4900CA, AC4825, AC4825DLX, AC4850PT, CDAP4500BCA, CDAP4500WCA PureGuardian AP2200CA Yellow

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Photo 1 of 2-Pack FLT4825 True HEPA Air Purifier Filter B Replacement Compatible with GermGuardian AC4300BPTCA, AC4900CA, AC4825, AC4825DLX, AC4850PT, CDAP4500BCA, CDAP4500WCA PureGuardian AP2200CA YellowPhoto 2 of 2-Pack FLT4825 True HEPA Air Purifier Filter B Replacement Compatible with GermGuardian AC4300BPTCA, AC4900CA, AC4825, AC4825DLX, AC4850PT, CDAP4500BCA, CDAP4500WCA PureGuardian AP2200CA Yellow