EHEIM Sealing ring for 2004/2005

Original EHEIM seal / gasket designed for the EHEIM Aquacompact 40 and Aquacompact 60 external filters, model types 2004 and 2005.

This is a rubber sealing ring that helps create a watertight seal in the filter assembly, typically between the pump head and filter body or other mating surfaces that need to be leak-proof.