What is the diameter of the opening?
253300
It's 1" -- the wrens can get in and out easily, but I watched a sparrow and he wouldn't fit.
1107724
The opening is just under 12 inches. An item of 11 3/4 inches should fit easily.
1254222
The diameter is close to 4 inches. I think the description given is in error. This is the same size as the unit we had previously back in the '80s.
421892
I measured the maximum opening when the tightening screw engages. It was about 7/8 inch or about 22mm. You could perhaps increase this with a longer tightening screw.
1409380
I roughly measured it with a ruler. The opening is about 3" in diameter and 1" deep.
225897
I measured 1/4" at the opening. There is a little ridge about an inch from one end ( to keep the straw from pulling out)
442563
the opening on mine is 3/4", though is could be a little bigger since the stopper is angled.
822383
the inside diameter of the opening for the 4 liters is 3 1/4". For the 5 liters is 3 3/8"
1599339
The diameter of the opening is 4 inches. If you read my review you will note that I do not recommend buying this teakettle.
343983
Just your normal opening. About an inch maybe more. Fingers fit comfortably through handle when opening.
508488
It is about 7-1/2 inches tall. The opening (diameter) is approx. 6-1/2 inches. It is slightly smaller at the bottom than at the top, but not by much.
1572906
The diameter is about 4 inches. It's the perfect size - not too big, not too small.
1882615
I don't know the exact measurement but the canister isn't tapered and doesn't bottleneck. The opening is the same size as the canister itself.
1194916
I am not sure of the exact dimension... I believe it goes to about 5/16"+ fully open. This is a GREAT product!
990613
Opening is like a rubber donnut. The hole in the center is 3 inches diameter, but the rubber can bend open to about 6.25 inches (maybe even a little more). I had a pretty big wide cast almost up to my knee and was able to wiggle my leg into the opening.
1695895
I did not take exact measurements of the existing opening since i was only using these speakers as replacements. I would say the existing diameter of the hole was 6". The speakers sound great and the blue LED lights are a nice touch.
417653
This is designed to fit a 1.7 inch cutout and it has a maximum outside diameter of 2 inches. Unfortunately this will be too small for your opening.