Replacement lids need to fit

I purchased these lids as replacements for the original lids that came with my Pyrex containers. The seal of the replacement lids was not as tight-fitting as the "old" lids that I need to replace. So, there's no point in keeping them. I returned them and do not plan on experimenting through additional trial and error (i.e., maybe I'll stumble upon a set that actually fits the way that it should.) So, when I pack a salad to take to work, I will continue to use a sheet of plastic wrap between the dish and the lid to prevent the inevitable leaks. Very disappointing. These Pyrex storage containers are meant to last for a long, long time. But the lids will be gone long before.

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