Feature:1. Highly Compatible: Filter replacement parts, designed for HanFuRen S1‑1 SC2902 SC2905A, stable performance and good compatibility.2. High Efficiency: This filter can provide high efficiency filtration, effectively reducing dust, pollen and other into the air you breathe.3. Good Durability: Selected high quality ABS materials, durable to use, wear resistant and corrosion resistant, long term use.4. Easy Installation: Vacuum cleaner replaceable filter, easy to disassemble and replace. It is a part of daily maintenance, highly matched with the original equipment.5. Vacuum Cleaner Accessory: Exquisite workmanship, built according to standard specifications, improve the cleaning efficiency of the robot vacuum cleaner.Specification:Item Type: Vacuum FilterMaterial: ABSWeight: Approx. 78g / 2.8ozFitment: Fit for HanFuRen S1-1 SC2902 SC2905A Vacuum CleanerProduct Size: Approx. 8.1x6.6x1.7cm / 3.2x2.6x0.7in Package List:3 x Vacuum FilterNote:1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.