SuperClear® high performance centrifuge tubes are lot-tested at a much higher g-force than rated to ensure that they can be spun safely. The quality control team tests the seals with chloroform. 

• ATP-, RNase/DNase- and endotoxin-free (non-pyrogenic)
• Patented anti-smear writing surface
• 3 colour printed graduations and reverse reading scale
• Convenient freeze line
• Ultra-clear Polypropylene USP Class VI resin, free of DiHEMDA, oleamide, and BPA
• Freezable to –80 °C, and autoclavable

SuperClear® tubes are made from an ultra-clear, medical grade resin and engineered with thick, durable walls for high speed centrifugation. SuperSeal™ leak-resistant flatcaps keep the tubes completely secure and the transparent, extra-large writing panel is smudge-resistant and easy to see through. SuperClear® caps feature vertical ridges for 'easy grip' ergonomic handling, even with gloves. The low-profile cap design allows for tubes to be easily stored in racks without overcrowding. SuperClear® caps come in two styles: plug and flat. SuperSeal™ flat caps have an elastomeric molded-in sealing ring that keeps samples secure while using a vortexer or rocker. Plug caps are ideal for horizontal shakers or extended storage.