【25-Piece Bulk Pack】: This package contains 25pcs ventilation cone filter, providing a long-term supply for both residential and commercial maintenance needs. 【Precise Application】: This ventilation cone filter has exact dimensions ensure a suitable fit, reaching stable and efficient use of your ventilation system. 【Effective Filteration】: Made from filtration material, this ventilation cone filter effectively captures particles, enhancing overall air purification for a fresh indoor environment. 【Conical Design】: The conical shape of this ventilation filter increases the effective filtration area, allowing for smoother airflow. It maintains high filtration efficiency while significantly reducing system air resistance, helping to preserve your unit's performance. 【Easy Replacement】: Replacing this ventilation cone filter is straightforward and requires no special tools or expertise. Users can easily perform the maintenance themselves, ensuring the ventilation system remains efficient with timely filter changes., Weight: 0.220462262 pounds, Manufacturer: BDKMMS