Compatibility: This product is a 1866F vacuum filter, which is mainly compatible with Crossover 17132, 2225N, 2582N, 25821, 2519, 1785, 1926 series and also for Crossover 2306, 2554, 2303 series and other models. of machines. Adopt 1:1 reduction appearance, size and material, which is more comfortable and suitable Cleaner HEPA Material: Crossover filter for uses high-quality H13 vacuum HEPA filter, which is commonly used in air purifiers to filter HEPA. It can help you filter 99.97% of 0.3 micrometer wide particles, reduce dust particles that may be swimming in the air of your room, greatly improve your usage efficiency and maintain a clean space Applicable Occasions: Cross filter helps you filter most dust particles, floating flakes, stains, dirt residue, hair, etc. It works with your machine to improve efficiency and does not hinder the operation of your machine, good air circulation until your vacuum cleaner is full of trash SAVE MONEY - The outer frame is made of material. The