Corning® 1396-500 PYREX® 500mL Square Media Bottle with GL45 Heavy duty 100mL Corning Pyrex graduated, square media bottle; Easy to handle square bottle; Wide mouth; Ideal for mixing, sampling and storing; Graduation range: 100-400mL (approx); graduation interval: 100mL (approx) Manufacturer: Corning Life Sciences; Manufacturer Part No: COR-1396-500