External thread Cap
Special screw cap designed without silicone ring to avoid the contamination risk.

Internal thread Cap
Special screw cap designed with silicone O-ring to secure the sealing under various condition.

Features:

·  Round Bottom, Self-standing
·  Solid, one-piece construction ensures the barcode does not fall off during storage under low temperature
·  Autoclavable
·  Clear graduations and white marking area
·  Sterilized by E-Beam
·  Non-pyrogenic, DNase/RNase
·  Recommend storing in the gas phase of the nitrogen tank