1.The accessories are not original, but 100% brand new and high quality compatible spare parts. 2. It is very necessary to carefully check the shape and size of the product before buying. Specifications: 1. Name: Hepa Filter + Dust Bag 2. Material: PP + Paper 3. Color: Yellow(as the picture shows ) 4. Hepa Filter Size: height is 115mm, inner diameter is 78mm, out diameter is 120mm Features: 1. Hepa filter can reduce infiltration of dust, pollen and other allergens into the air you breathe; 2. The dust bag has 2 layers of paper, can trap 99.7% of microscopic particles and allergens; 3. The dust bag is a disposable bag, so please replace it when the dust is full. Notice: 1. It is recommended that you replace filter every 1-3 months or according to your usage to keep the machine at its best performance; 2. Due to manual measurement, please allow 1-2mm size error. Compatible with model: Items for Karcher WD3.200 WD3.300 MV3 Vacuum Cleaner Robot Incompatible models: Can not fit for WD3 Premium Other model we do not mark also can not fit