Ulisem Foot valve, ball-type non-return valve, suction, 25, 32, 40 mm, PVC strainer non-return valve for swimming pool pump (Inner diameter 40 mm)

Application Model: Compatible with iRobot Roomba i7, i7+, i3, i3+, i4, i4+, i6, i6+, i8, i8+/Plus, E5, E6, E7, and E Series Robot Vacuum Cleaners. (Please confirm your vacuum cleaner model before purchasing.) Replacement parts help the robot effectively remove dust and debris from corners and edges. If the side brushes become bent due to shipping, simply soak them in warm water to restore their shape. Regularly clean the replacement parts to improve suction and performance and extend the life of your robot vacuum. It is recommended to replace the side brushes and filters every 2-3 months. Replace the multi-surface rubber brushes every 6 months, depending on your usage frequency.