These Corning® orange polypropylene closures are designed for culture tubes and flasks with long rimless 25mm O.D. 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.

Item Description:
These Corning® orange polypropylene closures are designed for culture tubes and flasks with long rimless 25mm O.D. 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.

Product Family Description:

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.

Closure ending in -25 fits Cat. No. 4442-125.
Closure ending with -38 fits Cat. Nos. 4442-250, 4442-500, 4442-1L, and 4442-2L.