• ( 5 Pack ) CLX200K aftermarket Lid Replacement O-rings
• These o rings are Peroxide Cured EPDM - high resistance to chlorine
• Be sure you remove any dirt and debris from lid threads and use proper lube (not Petroleum) before use
• FREE 1 G tubes of Silicone PTFE lube

Be aware all of the reviews from 2015 and earlier were based on products that Professor Foam did NOT sell!

Professor Foam started selling his EPDM Chemical resistant o-rings in 2016!

The previous seller was sending a Buna-N o rings wihch will last 2 - 3 weeks. This is NOT what Professor Foam is selling!

These O Rings from Professor Foam are aftermarket and are made from EPDM with a coating that increases resistance to Chlorine.