for FLT4825 hepa filter b replacement Compatible with air purifier models: FLT4825 Filter B, AC4300BPTCA, AC4900CA, AC4825, AC4825E, AC4850PT, AC4900CA, AC4820, and compatible with for Model AP2200CA and compatible with for BXAP148 FLT4825 hepa filter b replacement premium HEPA: True HEPA Filter can greatly improve air quality These filter b, flt4825 hepa filter b replacement contains Activated Carbon Pre-Filter and HEPA. Activated Carbon Pre-Filters: Provide you with fresh and clean enviroment and help extend HEPA filter life Having filter size b flt4825 offer a healthier and happier life: to enhance the quality of your life Color: Black & White Material: plastic Package Contents: 2 x True HEPA 8 x Carbon Filters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.