These PYREX® 20 mL test tubes are made from special tubing to give the optimum wall thickness. They are well annealed, resistant to heat and chemically stable. These 16x150mm tubes have a white marking spot. Beaded rims are fire-polished.

Item Description:
These PYREX® 20 mL test tubes are made from special tubing to give the optimum wall thickness. They are well annealed, resistant to heat and chemically stable. These 16x150mm tubes have a white marking spot. Beaded rims are fire-polished.

Product Family Description:

These tubes are made from special tubing to give the optimum wall thickness. They are well annealed, resistant to heat, and chemically stable. Rims are fire-polished.