PYREX brand bell jars are made from specially selected mold-blown blanks. The bottom flange has a finely ground finish to assure tight sealing with ground glass plates. Rated 1 Atmosphere Vacuum. Do not use with heat or pressure applications.
PYREX brand bell jars are made from specially selected mold-blown blanks. The bottom flange has a finely ground finish to assure tight sealing with ground glass plates. Rated 1 Atmosphere Vacuum. Do not use with heat or pressure applications.