Culligan OR-100 for HD-950A Water Filter Replacement O Ring made by PWF

The O ring goes bad that's life. Make sure you get some food grade silicone to put on it. It helps prolong the life of the gasket and you won't have to over tighten it to get a good seal. I would recommend replacing it every few years. It's a cheap item that can save your from a lot of mopping up.

It did its job of sealing my water filter canister flawlessly. Its an o-ring, that is what it is meant to do. What else can you really say about an o-ring?

fit perfectly

If you need one of these for your whole house water system then this one is as good as most. I learned a trick from my water treatment guy; if the O ring stretches out between filter changes put it in your freezer for a few minutes and it will shrink down to the former size when replacing the filter! Also, only use silicone grease on the threads and O ring for easy changing the next time.

worked perfectly

It is good fits ok

It was the exact size and product I needed. Prompt delivery service.