Genuine motor filters for ELECTROLUX vacuum cleaners: Bolido Z 4500...4595, Clario Z 1910, 1915, 1920, 1925, 1930, 1931, 1935, 1940…1945, 1948, 1955, 2010, 2015, 2018, 2020/HP, 2022, 2030, 2035, 2036, 2038, 2039, 2040, 2045, 2048, 2050, 7510…7549, Maximus ZXM 7010…7035. These high quality motor filters protect your vacuum cleaner motor from dust particles. The high grade of material provides your vacuum cleaner with high airflow and strong suction power as well as a high filtration level and maximum dust retention. For optimum performance your filters should be changed at least twice a year or when you notice they are visibly soiled. The use of non genuine filters may adversely affect the performance of your vacuum cleaner. This pack contains 2 motor filters. Motor filters reference: EF 29.