Class B Borosilicate Glass Burette with Pinch Clip Material_Polycrystalline 3 glass provides sterilizable vessels

3 glass provides sterilizable vessels for biology

Eleven-ohm 5A air-cooled rheostat with constantan winding on a 300x44mm vitreous-enameled steel tube and a slide-bar carriage carrying a phosphor-bronze contact

Food coloring assortment provides four dye colors for chromatography experiments

and enzymatic activity

Borosilicate glass demonstration tube measures 23

Class B Borosilicate Glass Burette with Pinch Clip Material_Polycrystalline 3 glass provides sterilizable vesselsRubber tube and pinch clip flow control paired with a borosilicate glass body calibrated to DIN ISO 385 for student bench titration without ground glass stopcocks.