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> 6.5 x 1IN plastic safety test tube preform threaded cap
6.5 x 1IN plastic safety test tube preform threaded cap
All soda bottles start as a small plastic bottle called a preform. This bottle is heated and blown into a larger bottle and is fill with a beverage. These tubes are air and water tight when covered tightly with the cap. They are good for collecting or storing liquid samples. These tubes have an integrated safety ring so that you can seal the tube and know if it has been opened.
* Holds 50ml's or just slightly less than 2 ounces.
Refer to image to see side by side comparison of preform testtubes economy and premium.
