PYREX VISTA 50mL Narrow Mouth Erlenmeyer Flasks wi
Corning (This is the suggested replacement for 4990-50) These 50mL PYREX® VISTA™ Erlenmeyer flasks have uniform wall thickness which provide balance between mechanical strength and thermal shock resistance. Approximate graduations are in durable blue enamel. An extra large marking space is also provided. The 50mL Erlenmeyer flask is designed to ASTM E-1404 Type 1. - COG