(6 Pack) CLX200K Hayward Pool Chlorinator Lid O-Ring for CL200/CL220 with Lube ( 6 Pack) CLX200K Hayward Chlorinator Lid Replacement O-Ring Measurements: 5.5" diameter O-ring for Hayward CL200 and CL220 chlorine feeder lid Seals cap to feeder body preventing chlorine gas leaks Chemical resistant Includes 3 grams packet of PTFE based lubricant for easy installation Hayward In-Line Chlorinator Hayward Off-Line Chlorinator CL200 &amp; CL220