The eSpring™ Filter Bracket O-Ring is quite an essential part that connects the filter bracket to the cartridge and seals it well. However, it can get porous, therefore leading to some leaks. In case the original part becomes broken or gets damaged, maintain the functionality and convenience by replacing it with the original eSpring Filter Bracket O-Ring from the eSpring systems. Conveniently it can be easily exchanged without any professional prior knowledge nor skills. Also, no tools are required to exchange eSpring Filter Bracket O-Ring. Simply deinstall your unit, disassemble the filter bracket from the cartridge and replace the O-Ring.