
These lids were purchased for 5 gallon water jugs. We have Primo and Arrowhead water jugs. No leaks, no problem. Hats fit well and snugly. If you place them as is, they will be difficult to remove. I recommend making a cut along the edge before donning. When ready to use the jug, slowly pry it away from the cut as you would any other lid. See photos. I haven't used a stretcher so I can't comment on ergonomics, material strength or design.

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