O-rings for Hayward CX900F replacement filter cartridges, filter series separators.

This sealing gasket is compatible with the Hayward CX900F model and replaces the O-rings in the filter cartridge separator tank. It is also suitable for Star-Clear Plus C900/C1200 models and similar. Made of soft and durable silicone, it prevents air leaks at the top of the filter and maintains filtration pressure.