Compatibility: Our Replacement Part Accessories Kits Filter Are Designed To Compatible With Xiaomi Mi Mijia Roborock S4, S5, S5 Max, S50, S55, S6, S6 Pure, S60, S65, E4, E20, E25, E35 Robot Vacuum | | These Roborockxiaomi Accessories Are Made Of High Quality And Durable Material To Ensure The High Efficiency And Cleanliness Performance Of Xiaomi Robotic Vacuum | | It'S Better To Replace The Spare Parts 1-3 Months, So That The Vacuum Cleaner Will Be In The Best Working Condition | | Package Contents:4Pcs Filter. High Efficiency Filters Maintain The Highest Cleaning Performance For Your Roborock Vacuum Cleaner | | Easy To Replace And Install | |