I2130-COMBO - 0.5ml Screw cap tube, conical base AND Standard Screw cap with O-Ring , Bag of 500

Please note: this combo includes screw caps tubes in natural (bag of 500) AND standard screw cap with o-rings in red (bag of 500).

Screw Cap Features:

• Manufactured from high-clarity, ultra-pure polypropylene (meets FDA 21 CFR 177.1520 & USP Class VI).
• Suitable for a wide range of temperatures—from -196˚C to +121˚C. Note: not suitable for immersion in liquid nitrogen.
• Ideal for boiling applications.
• Rated to 20,000 x G.
• Available with or without graduations or ribbing.
• Graduated versions marked at every 100 µL to provide easy sample estimation.
• Skirted or conical bases.
• Certified free of detectable RNase, DNase, DNA, PCR inhibitors, and tested pyrogen-free.

Standard Caps: 

• Easy 3⁄4 turn to open and close.
• Synthetic O-ring, except 2003.
• Available with and without attached tether.
• Caps offered with synthetic, silicone, or with the super secure (GripSeal) molded seals.
• Large variety of cap colors to choose from.
• Cap Insert Discs for added sample identification.
• Temperature Range from -196°C to +121°C. Note: not for immersion in liquid nitrogen.