Culture Tube

1-Culture tubes with screw caps 

AR-Glass-culture vials, with DIN-thread, screw caps made of PP, white rubber gasket (food-stable). Sterilizable up to 1 bar, excess pressure at 121 C.

2-Cryo-vials 

Made of polypropylene. Sterile.dia 12.5 mm. Autoclavable. 
Suitable for storing cell cultures, serum, haematal constituents, bacteriological cultures and other liquids at low temperatures in refrigerators or nitrogen containers. Temperature stable up to -196 C. (Suitable for storing samples in der gaseous phase of liquid nitrogen).
The plus points:
-Certified RNase-/DNase-/DNA- and pyrogen free 
-Vertical stripes , good grip cap 
-Closed by turning 1.25 times :speedy opening and closing 
-White labeling space and colored cap inserts :easy sample identification 
-Free-standing tubes with thread on the bottom: one-hand operation possible in stands with snap-in attachment 
-Cap and tube are made of the same material (PP) :even expansion of material, no danger of explosion 
-High transparency : Sample can be seen clearly 
-Round interior :contents can be totally emptied