Feature:1. [Applicable Models] These robot vacuum cleaner filters are designed for S7, S7+, T7S, T7 Plus vacuum cleaners, ensuring compatibility.2. [Efficient Filtration] Featuring high efficiency particulate air design, our filter can effectively reduce dust and pollutants in the air, promoting a cleaner living environment for your family.3. [Simple Installation] Our professional replacement filter is easy to replace and install, allows for quick setup, making maintenance a breeze.4. [Set of 4] To maintain performance, we suggest replacing your filter every 2 to 3 months. The set comes with four filters, providing you with extended use.5. [Sturdy Material] The filter frame is made of premium ABS material, which is sturdy and firm, not easy to damage or break, ensuring durability.Specification:Item Type: Robot Vacuum Cleaner FilterMaterial: ABS, High Efficiency Particle AirApplication: for S7+ S7 T7S T7 PlusWeight: Approx. 79.00g / 2.79oz.Package List:4 x Robot Vacuum Cleaner Filter