MTC Bio Spectra Tube Bio Centrifuge Tube with Flat Rainbow Screw Cap, 15 ml, 500 Pack

Don't let the pretty colors fool you!! these conical 15ml and 50ml centrifuge tubes are made of premium polypropylene, with exceptionally uniform wall thickness for clarity and centrifugal strength. Tubes and caps may be used for sample storage at temperatures as low as -86c. The maximum centrifugal forces are 12,000xg for the 15ml tubes. Tubes and caps are suitable for stem cell research and certified sterile, rnase, dnase, and pyrogen free. features: color coded caps for easy sample identification 15ml rated to 12,000xg sterile, rnase, dnase, pyrogen and cytotoxin free sterile gamma and individually packed leak proof