Size: The outer diameter is 7-9/16 inches, height is 6-1/2 inches. It can capture fineer dust particles Premium Quality&High Efficiency: Made of premium quality 3-layer HEPA paper. It is up to 5 times more efficient than the standard cartridge filter Durable&Reusable: It can be easily cleaned with mild water, and then dried in the sun to be reused. High-quality manufacturing ensures that your expense is worthwhile Easy to Install: You can remove the old filter without any tools. In addition, it is recommended to replace the filter element every 4-5 months according to the usage, so that your vacuum cleaner will run like a new one Application: For both dry&wet use. It can be used in a variety of scenarios such as home, office and industry. The pleated vacuum filter is perfect for collecting most of the daily dirt, sawdust and pet dander, capturing at least 99.97% of the particles to make your environment cleaner and healthier