Okay, so, do these fit other glass bottles, e.g. Evenflo, or just LifeFactory ones?
618508
Yes & no. They go on all the regular sized glass bottles. Not wide mouthed bottles. But these leak from where they screw onto the bottles, and from the mouth piece. Don't bother buying these. The regular caps that prevent spills, not the sippy cup caps, work great though.
103296
I'm not certain because mine are plastic. But once they are the standard size bottles, whether glass or plastic they will fit. I tried them on another generic (plastic) bottle that I had and they fit perfectly.
1558403
They are compatible with the Medela pumps but I'm not sure of the model you're asking about. I love the bottles!
574979
Yes. They do fit. And if you are creative with the space, you can fit four bottles with all the components (minus the caps).
1641426
Nope, they won't. The company says they are universal but they don't screw on to any of the pumps that use wide-mouth bottles. However, check out the Kiinde Twist bags, their adapters will work with the Hydeia and their bags are awesome!
335112
Hmmmm, can't say for sure, but I think that they would fit if you lie them down. Also depends on what kind of bottle. Some brews have a taller bottle, i.e. Heineken used to use shorter bottles, but now they are taller. Since I gave the item for a gift, I don't have it in front of me to check; but I am going to say that they would fit. Hope that helps!!
194435
The ones that fit best are like the "McCormik type" that have the indentation at the neck are of the bottle as shown in the picture. I don't have any square/rectangular metal containers, so haven't tried that.
118522
If the bottles have a threaded twist-off cap, the answer is no. However if the bottles have a soft plastic pop-off cap, then yes, it should fit.
103301
Yes, they do. I have 8 oz. glass bottles and 4 oz. plastic bottles and these caps fit all of them perfectly.
98852
Yes... My fit perfectly. It was just the thing that I was looking for. Make sure that your bottles are screw on compatible...
318379
Yes, the regular ones do. Not the wide mouth versions. And the two ounce bottle pieces (the blue part and little piece at the top) fit. They are basically the two ounce bottle version, with different printing on the outside.
1914121
Quite possibly. They do fit the 1 liter (33.8 oz) bottles marked Italy with white plastic stoppers using gaskets quite nicely.
103297
I am not sure. I only have the plastic bottles, but to my knowledge they are the same size opening.
429087
I don't know for sure, but would assume no. these are specifically advertised to fit nalgene bottles.
11088
They are standard size, we have born free glass bottles and they work with them. Hope this helps.
974843
I do not know for sure because I haven't used the glass ones, but I would assume yes. I have been using Avent products since 2006 and they are all interchangeable...which is one of the reasons I bought these in the first place. These rings fit on my very old bottles as well as my new ones.
784251
They will fit a Grolsh or German flip top bottle. That's what I use them on.