Vintage Pyrex 250 ml Erlenmeyer Flask 1" Mouth Made in USA | eBay
Corning Pyrex #4980-10, 10ml Narrow Mouth Erlenmeyer Flasks with Heavy Duty Rim - Pack of 6: Amazon.com: Industrial & Scientific
PYREX Graduated Wide Mouth Erlenmeyer Flasks with GL45 Screw Cap 250 mL: Flasks | Fisher Scientific
Lot of 2 Pyrex Glass 250 mL Erlenmeyer Flask Heavy Duty Rim 4980 | eBay
PYREX® 125 mL Narrow Mouth Erlenmeyer Flask with 24/40 Standard Taper Joint | Corning 5000-125 | Macalaster Bicknell Company of NJ
Corning 4980-50 Pyrex Narrow Mouth Erlenmeyer Flask with Heavy Duty Rim, 20 mL capacity-50 mL Capacity Graduation Range, Rubber Stopper Number 1, 51 mm Diameter: Amazon.com: Industrial & Scientific