Corning® Polypropylene Closures for Culture Tubes and Delong Flasks

These Corning polypropylene closures are designed for culture tubes and flasks with long rimless necks. Closure offers two positions: open for gas exchange or closed for humidified environment. Internal drip ring minimizes contamination. Closures are autoclavable at 121°C.

• 25 mm closures fit Corning® PYREX® 125 mL Long Neck Culture Flasks (Cat. No. 988-21717)
• 38 mm closures fit Corning® PYREX® Long Neck Culture Flasks; 250 mL (Cat. No. 988-21718), 500 mL (988-21727), 1000 mL (988-21715), and 2000 mL (988-21721)
Image(s) are representative of the product group and not necessarily the individual product.

Color: Natural
Fits Neck I.D. (mm): 25

Color: Orange
Fits Neck I.D. (mm): 25

Color: Natural
Fits Neck I.D. (mm): 38

Color: Orange
Fits Neck I.D. (mm): 38

Color: Natural
Fits Neck I.D. (mm): 40

Color: Orange
Fits Neck I.D. (mm): 40