Micrewtube Screw Capped Tube with Loop, Non-Graduated, 1.5ml Self-Standing Bottom, 500 per Case

Micrewtube Tubes features O-ring seal screw cap and attachment loop. Loops remain attached to tubes and prevent cross contamination. Tubes withstand high speed centrifuging, autoclaving, boiling and freezer storage. Screw cap with "O" ring provides superior sealing during sample processing. Uniform well thickness withstands 17,000xg forces. Graduated tubes have printed marking area. Polypropylene tubes are available with screwed-on cap: pre-attached loop; natural color; and sterile.