United Scientific Supplies, CY2981-250, 250ml Batch Certified Class A Glass Graduated Cylinder with Stopper
Cylinder comply with ASTM E-1272, Class A standards, batch certified. With hollow glass stopper.
Double metric scale, calibrated to contain. Borosilicate glass Cylinder with pour spouts feature heavy uniform wall tubing and strong, stable, hexagonal bases. All Cylinder come with bumper guards.