5000-250 | PYREX® 250 mL Narrow Mouth Erlenmeyer Flask with 24/40 Standard Taper Joint | Corning
Pyrex Glass Filtering Flask, Heavy-Walled, with Side Tubulation, 500 mL | Oriental Trading
PYREX® Narrow Mouth Erlenmeyer Flasks with Heavy Duty Rim
500mL PYREX Erlenmeyer Flask for Chemical R&D Use - EQ-ERLFLA-LD
Corning 4980-125 Pyrex Narrow Mouth Erlenmeyer Flask with Heavy Duty Rim, 50 mL capacity-125 mL Capacity Graduation Range, Rubber Stopper Number 5, 67 mm Diameter: Amazon.com: Industrial & Scientific
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Pyrex Vista Erlenmeyer Flask with Stopper, 250 mL – St. Louis Art Supply
PYREX 4980-300, 300ml Narrow Mouth Erlenmeyer Flask with Heavy Duty Rim (Single) | eBay