PERFECT FIT - Designed to replace i7 i7 / i7 plus E5 E6 vacuum cleaners. This set works as well as those, precision fit and easy installation. The products are made of high-strength and environmentally friendly materials that ensure optimal performance and a healthier lifestyle. HIGHLY EFFICIENT FILTRATION TECHNOLOGY - Two quality rubber brushes are perfectly matched, one to remove dirt and the other to soften it. The side brush reaches deep into corners and edges to remove more dirt, dust and debris. The cleaning filter blocks 99.97% of pollen, dirt, dust, pet dander and other particles as small as 0.3 microns. EASY TO CLEAN AND REPLACE - Hand wash in warm water and let air dry before reusing. Clean the replacement parts regularly to improve suction and performance, and extend the life of your . For best results, edge sweeping brushes and filters should be replaced every 2 to 3 months. Multi-surface rubber brushes should be replaced every 6 months. Note: This product is not a . It