Centrifuge tubes with leak-proof, autoclavable screw closures made of polypropylene, white and integrated seals. Closures size 16-ml and bigger with handle.

Polypropylene screw cap; silicone seal
Same stability and sturdiness as polycarbonate but much better resistance to acids and alkali. Withstand up to 50,000 × g in refrigerated or non-refrigerated centrifuges. With sealing cap closure option. Unscrew the cap before autoclaving and place it on the neck of the tube. The tube must always be no less than 80% full.