PYREX 4980-500, 500ml Narrow Mouth Erlenmeyer Flask with Rubber Stopper (Single)
Rubber Stopper: #7. Style: Narrow Mouth with Heavy Duty Rim. Graduations: 50ml, 100ml to 500ml.
Rubber Stopper: #7. Style: Narrow Mouth with Heavy Duty Rim. Graduations: 50ml, 100ml to 500ml.