Corny ball-lock post silicone o-ring bulk purchase recommendation?

[mac_1103]

One the one hand I can agree, but up to a point

Well, "up to a point" is plenty. Since I was joking and all. I constantly amuse myself by doing things in other hobbies that are supposed to simplify a process, only to find that they just add a different kind of complexity.

 

[Closet Fermenter]

Here's Buna-N o-rings for ball lock that I use, probably the best for the least oxygen ingress. Dip tube and lid are the better x profiles and NOT round.

McMaster carr #'s
Post 9452K23
Dip tube 90025K368
Lid 90025K551

These guys are tops! I ordered yesterday morning right after I saw your post. I opened my door shortly after noon today and they were on my steps!
With multiple kegs, I have decided that the easiest way to keep up with time in service is to just use permanent marker on the keg. (Permanent marker comes off stainless steel with, uh alcohol. )

 

[Clint Yeastwood]

If you buy this, the O-rings you want will be in there somewhere, along with a ton of other rings that may be useful in the future.

https://www.amazon.com/BUSY-CORNER-...07-baca-a271fc66ba18&pd_rd_i=B08DWHMH9V&psc=1

 

[Red over White]

These guys are tops! I ordered yesterday morning right after I saw your post. I opened my door shortly after noon today and they were on my steps!
With multiple kegs, I have decided that the easiest way to keep up with time in service is to just use permanent marker on the keg. (Permanent marker comes off stainless steel with, uh alcohol. )

View attachment 815285

That's really fast. I use thick plastic luggage style tags and an old school grease pencil (China marker) to write on them. It's not perfect, but it is rather durable and reusable.

 

[kiwipen]

Thanks for those replies. Yeah, those rings look fine and the price is right. I guess I'm not so concerned about what's causing the expansion and if it is Star San there's nothing that can be done other than just frequently change them

Existing rings are from a mix of different replacement kits. Was making an effort to keep parts from different kits together but after having enough go bad I stopped trying to keep track of what came from what kit. I've frequently have them do this, this ring has expanded enough to effortlessly push it down out of the ring indention
View attachment 815103

The groove for the o ring looks more rounded off than I'm used to. All of mine have a very squared profile. I don't know it it matters, just wanted to mention it.