TPP Polar Cryovial Tubes have been ergonomically designed to provide a secure housing for precious harvested cells and tissues in the vapor phase of liquid nitrogen or ultra cold storage. The most common problem with standard cryotubes is the gasket popping and leaking, which has been tackled by TPP.   
   
TPP Polar Cryovial Tubes have the O-ring molded into the cap, thus providing a very tight seal and preventing gasket popping. Long term storage of samples that remain leak resistant is the main goal with this Premium TPP Product.