Pyrex tempered glass bakeware, mixing bowls, and food storage are manufactured in Charleroi, Pennsylvania, where the company has pressed American glass for decades. The tempered soda-lime formula stands up to oven, microwave, freezer, and dishwasher transitions, and the clear glass body lets cooks see browning, layers, and doneness without cracking a lid. Pyrex has been a kitchen fixture in American homes since 1915.
Two red plastic replacement lids for the Pyrex 7201 4-cup round food storage container — the most common Pyrex lid replaced after years of use. BPA-free plastic with a snug fit that seals against the fire-polished glass rim, and bright red color that makes lids easy to spot in a cabinet full of Pyrex. Keeps an existing 4-cup container in service instead of buying a full new unit.
Pyrex was introduced in 1915 by Corning Glass Works as a borosilicate oven-safe glass, and the brand transitioned to tempered soda-lime glass in the 1990s — the current formula produced at the Charleroi, Pennsylvania plant. The brand is now operated by Instant Brands and remains the most recognized name in American glass bakeware and food storage. Charleroi employs American glassworkers, mold operators, and finishers across every shift.






