Replacement ilters Compatible with iRobot Roomba S Series S9 9150 S9+ Plus 9550 Robot Vacuums, 8-Pack. Toilet Aid Tools -Pole: 17MM of battery pile

-Pole: 17MM of battery pile head

Operation Mode: Crank

especially in hot weather

which could make the bed rail cover better fit the hole of original rail hole

Replacement ilters Compatible with iRobot Roomba S Series S9 9150 S9+ Plus 9550 Robot Vacuums, 8-Pack. Toilet Aid Tools -Pole: 17MM of battery pileWhat's In The Box: 8 x High Efficiency Filters. This is a Replacement Parts Compatible with iRobot Roomba S Series S9 9150 S9+ Plus 9550 Robot Vacuums. To keep your Robot Vacuum running at peak performance, Please clean the filter once per week( twice per week in homes with pets) and replace it every 2 3 months. The High Efficiency HEPA Filter captures up to 99% dust, dirty, pet hair, and small particles. It is easy to be replaced and installed on