2-Pack Chlorinator Lid Replacement O-Ring For Pentair Rainbow Models 300/320 R172009 O-283 2 Pack

The old ring had deteriorated with age and the local shops wanted more than I wanted to pay, this pack was at a great price and the ring dropped right in.

Lid on chlorinator was getting harder and harder to remove, discovered that the lid O-ring was swollen from the chlorine and it was time to replace. These TORK O-rings worked just perfectly. Fit precisely, and lid is now easier to remove. Will definitely order these again as needed. Arrived ahead of schedule in an appropriately sized package.

Works as intended.

Well, the title pretty much says it all. I bought a house with an existing in-ground pool and the pump set was at least 10 years old. When the last time this o-ring was changed, I don't know. When I inspected it, it was rotten and crumbling. This o-ring set is a perfect fit for the Pentair Rainbow Model 320 cap. I put a little silicon lubricant on the o-ring and placed in inside the cap and I expect I'll be an old man before I need to use the 2nd o-ring in the package.

The O-rings appear to be good, and we look forward to using them at next seal replacement. It would have been nice to have them arrive in a sealed plastic bag, but it was easy to add a plastic bag for storage.