"Ward's Phenomena"

Set of 25, 50 and 100 ml ASTM Class B borosilicate glass volumetric flasks with pennyhead stoppers.

Class B Volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, polypropylene stopper, and blue enamel markings.

ASTM Class A volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, polypropylene stopper, and blue enamel markings.

High quality conical flask features heavy wall design and plastic fitted integral side arem for extra stong vaccume filtration.

Class A Amber volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, polypropylene stopper, and white enamel markings.

ASTM Class A volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, solid glass pennyhead stopper, and blue or white enamel markings.

Erlenmeyer flask set consisting of three smaller sizes: 50, 150 and 250 ml, all made from borosilicate glass with narrow necks, white markings, and beaded rims.

ASTM Class B volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, polypropylene snap cap, and blue or white enamel markings.

Buchner filtering flasks are made of high quality, heavy duty borosilicate glass.

Class A volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, polypropylene stopper, and blue or white enamel markings.

ASTM Class A Volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, polypropylene snap cap, and blue or white enamel markings.

These volumetric flasks are made of borosilicate glass.

ASTM Class B Volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, solid glass penny head stopper, and blue or white enamel markings.