Made in USA
Tube material = Polypropylene
Cap material = Polypropylene
Thread (tube) = External
Cap color = Natural
Washer seal material = Silicone
Temperature Range = -196 C to +121 C
Autoclavable = Yes
Exceeds 95kPa testing standards
RNAse, DNAse, DNA & Pyrogen free
Caps and tubes packaged in same box in separate sealed bags of 100 case of 1000