If I want to insert these into something other than the rubber stoppers (say a drilled canning lid) what size hole/rubber grommet do I need
915544
The important thing in making sure these fit is the grommet inner-dimension (often labeled "ID"), while the outer-dimension (OD) of the grommet is the hole size you'll need in your lid. Although there are other dimensions to a grommet as well, they should be largely insignificant unless you're attempting to put them into something thicker (like glass). These airlocks in particular work well with 3/8 inch inner-dimension grommets. The outer-dimension, on the other hand, is much less significant and a 1/2 inch outer-dimension is common and works well (unless you're using preexisting holes or only have a particular drill bit size, in which case you'll need to measure/find the size). There are a couple things to note: 1) I'd suggest silicone grommets instead of plain rubber for consumables and 2) both the grommet and especially the airlock will likely be a pain to get properly in place the first time you do it to the point there's a decent chance you'll question whether you've bought a fitting grommet size.
874617
Cut a hole in the fabric before you insert the grommet. I use a hole punch specifically designed for making holes for grommets.
1642239
They fit perfectly on a narrow mouth canning jar. I tried it on two different canning jars - one was Ball canning jar - and the other was an off brand.
2021008
A little more information is needed to understand what you want to do. These rubber rings are used when you use a glass lid (as shown) upon which the jar itself doesn't have threads at the mouth. The small (regular) qt jar is 2 5/8" across the top of the outer side of the mouth, and the wide mouth is 3 1/8" across the same. This would also be used to seal a metal zinc lid. The jars measurements would be the same as above, but of course both sizes would be a threaded mouth. If you're not using those to types of lids you won't be needing these rubber rings. Sorry to say, but if this doesn't answer your question, you'll need to provide more information, upon which I'll attempt to provide you with more. Hope this helps.
1956863
Of course, just make sure the hole is the right size. If you're just going to use the plastic airlock and not the carboy rubber part, I would recommend buying some rubber washers that will fit tightly on the airlock on both sides of the mason jar.(washer/lid/washer, and stick the airlock through all the holes)
331685
Yes! 12 QRP GROMMETS BPA-FREE FOOD GRADE WHITE SILICONE for Fermenting in Mason Jars They fit perfectly! Works great too!
251952
They worked fine for a project of my daughters. She was drilling holes in plastic lids for straws. She told me what size grommet she needed. No problems!
445502
use the Rubbermaid generics that you can get at any home improvement center, Lowe's, Ace, Home Depot..they work just fine.
247525
these fido gaskets are the only things I know about (not the oblong canister you refer to). But if you go to ACE Hardware (or something like that) sometimes you can find sheets of rubber that you can cut to make your own gasket. Though I've never seen one as big as your canister.Sorry I can't be more helpful. Good luck
1739521
It is a rubber stopper with a hole through the center. As long as the lid you are using has a hole that the stopper can fit into without going all the way through I would imagine it would work.
1048478
I know they are the correct size for the unmarked jars my wife has. Those are generic wire bale canister jars. It was a tight fit but they work fine. Use a micrometer to find the diameter and these were about a quarter inch smaller than the jars, but work find and seal properly.
880389
Any hardware store will have rubber grommet type o-rings that should help I have never had a problem with mine but I think that would be the easiest cheapest solution! Hope that helps.
1693886
They should fit just fine. This type of jar is made to seal air tight from the lid, so the rubber gasket has to stretch over the inside of the top, like an old lady getting into a girdle. LOL. I have a set of kitchen apothecaries, all with different sized lids, and all the gaskets fit airtight.
1856261
I use them as the stopper when I make cups. (Mason jar lid, drill hole, place rubber grommet, instant reusable drink cup out of mason jar)
1946280
I used them in a canning jar lid and they fit snugly. You might be able to us them on something slightly thicker but not much. They are very pliable. Hope this helps.
602912
I am not sure. If you are going to buy these I would buy the rubber stoppers too. Working together they will be great. Hope this helps.Drilled Rubber Stopper #6 (Set of 3)
1277567
As long as the fit pretty much on the rubbermaid I would go ahead and use them. I use generic pads on mine which are far cheaper than the rubbermaid pads