Flat-bottom culture tubes are ideal for plant tissue and general culture work.

Two-position polypropylene closures are sold separately. Position closure open for gas exchange or closed for humidified environment. Internal drip ring minimizes contamination.

Flat-bottom culture tubes are ideal for plant tissue and general culture work.

Two-position polypropylene closures are sold separately. Position closure open for gas exchange or closed for humidified environment. Internal drip ring minimizes contamination.

The flat bottom facilitates use with agar slants. Walls and bottoms are of uniform thickness. The tubes are rimless for greater convenience in plugging and rack storage.