"Ward's Phenomena"

Class A USP borosilicate glass volumetric flasks with PP stoppers and calibration certificates.

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

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 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.

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.

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.