Ideal for applications in freezer storage, autoclaving, boiling, or irradiation. External ridges fit rack serrations and allow one-handed opening.
Colored PPCO screw caps are fitted with an ethylene propylene O-ring for reliable, leakproof performance. Compatible with most microcentrifuges with fixed angle heads. Withstands over 30000×g. Seamless conical construction with squared external threads prevents hang up of samples and reduces contamination.