For RV2310/RV2310AE Hepa Filter - 4 Pack High efficiency HEPA filter captures up to 99.5% of dust, dirt, pet hair and small particles. Maintenance once every 2 weeks, remove and rinse by gently tapping to remove any dirt. 6-12 months replacement recommended. Color: Black Material: Plastic Package Contents: 4 x RV2310/RV2310A Filters 1 x Cleaning Brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.