This Corning® cell culture flask is made of optically-clear virgin polystyrene and comes with an orange vented cap. It has a 75cm2 available growth area, and is 100% integrity tested. It has been TC-treated for optimal cell attachment, and is printed with lot numbers for ease in traceablity. Sterilized by gamma irradiation and certified nonpyrogenic. This is the suggested replacement for Corning® Items Number 430198 and 430199. Graduated. Sterile. Material: Polystyrene. Cell Growth Area: 75cm2. Flask Shape: Modified Triangular. Neck Style: Straight. Surface Treatment: TC-Treated. Cap Style: Vented. Cap Material: High Density Polyethylene. Cap Color: Black. Recommended Medium Volume: 15 to 22.5mL. Maximum Working Volume: 90mL. Corning® #: 3276.