109 Silicone O-Ring, 70A Durometer, Red, 5/16" ID, 1/2" OD, 3/32" Width (Pack of 100)

These appear to be high quality silicone orings, but I was shipped the incorrect size of orings. While the bag label indicated 109, they measured as 110. I ordered a second bag of 109 o-rings from this supplier and they are the correct size. I am not sure how they got packaged incorrectly. I'd recommend checking the size with a calipers before you attempt to use them in case the same thing happens to you.A -109 o-ring is the size o-ring to use on keg dip tubes. I was recommended to purchase these and was excited to refresh all of my kegs. The factory o-rings are square -109 sized (5/16" ID, 1/2" OD, 3/16" Thickness).The package I have is labeled "109-S770-100" I'd guess for -109, durometer 70, 100 count, but these aren't 109. After spending far too long trying to make sure I didn't select the wrong size, I grabbed my calipers. The measurements of the o-rings match a -110 size, not a -109.A bit disappointed. I ordered 3 different types of o-rings made by sterling seal & supply. The others seem to be to specification. Maybe this one bag was labeled incorrectly?

I bought these as a bulk alternative to buying straight from S&B. These are a match for the bowl piece, where the bag or hose connects.The gasket fits tighter, the bag and hose fit looser. With the S&B gaskets, it was the other way around for me. This is preferred.

I purchased these to replace the o ring in my volcano hybrid vaporizer. It looked like they would be to small at first but they do fit with a little effort, and they hold the metal bit in place since the little tabs broke off. Quality o rings.

Stands up well for my requirements of temps of 385⁰F.

I use those for my Corny kegs. The bulk is way cheaper than the single pieces you can by at your home brew supply.

These are high quality O rings for use on keg tubes. They fit perfectly. I now have an adequate supply I can change them out regularly and not lose gas or beer!

These O-rings fit perfectly on my corny kegs. The silicon is much nicer than the original black rubber rings as they are still soft at cold temperatures, giving a better seal. These seals are for the dip tubes on the liquid and gas side. For the posts, you will want 111 Silicone O-rings

Use them on the pickup/gas tubes on my corny kegs (Ball or Pin lock). Work great hasn't had any problems. Can't beat the price. Most sale you 0 rings set for each keg around $1.50 up to $3. I can all 3 o rings cheaper and in bulk.Other sizes are:http://smile.amazon.com/gp/product/B0051XYDYU/http://smile.amazon.com/gp/product/B000FMWNZS/