- Long lasting seal The fin seal ring is built with ribbed rubber to resist wear and help sustain strong suction and broad cleaning coverage over time, contributing to a longer service life for your pool cleaner. - Enhanced cleaning performance The seal ring improves cleaning coverage and provides a secure fit with an inner diameter of 110 mm (4.4 inches) and an outer diameter of 420 mm (5 inches), facilitating easy installation. - Multiple functions Helps maintain a clean pool while reducing common performance issues, aiding easier maintenance and consistent cleaning results. - Wide compatibility Designed to fit a variety of pool cleaner models, preserving suction and movement for efficient cleaning across different units. - Specifications Material: ribbed rubber Inner diameter: 110 mm (4.4 inches) Outer diameter: 420 mm (5 inches) Application: fin seal ring for pool cleaners - Use scenarios 1) Replacing a worn seal on a standard pool cleaner to restore suction and maintain weekly cleaning performance. 2) For pools with heavy debris or seasonal leaf loads, to improve cleaning reach and efficiency. 3) If you own multiple pool cleaner models, use the same seal ring across models to simplify parts replacement and maintain consistent performance.