Features 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. Specifications Item Type: Robot Vacuum Cleaner Filter Material: ABS, High Efficiency Particle Air Application: for S7+ S7 T7S T7 Plus Weight: Approx. 79.00g / 2.79oz Package List 4 x Robot Vacuum Cleaner Filter