General description The Buy Vac 90304 Vacuum Cleaner Filter is specifically designed for Shop-Vac 90304 filter cartridges and fits most Shop Vac wet/dry vacuums with a capacity of 5 gallons and up. This high-quality filter effectively captures 99.97% of dust, pollen, and dirt, ensuring a clean and healthy environment for you and your family. Technical specifications Filter mesh diameter: 7.36 inches Filter mesh height: 6.57 inches Filter cotton diameter: 5.9 inches Filter cotton height: 5.12 inches Installation Easy installation with no tools required. Remove the old filter and insert the new one. Installation takes about 1 minute. Usage Wash the filter with water after use and let it dry in the sun. Once dry, the filter can be reused. It is recommended to change the filter element every 2-3 months depending on usage for optimal performance. Other information The filter features a high-pressure design to increase airflow and suction power.