Five-neck heavy wall round-bottom flask with vertical Standard Taper outer joints

·         Side necks are 90° apart

·         Where possible, vertical necks will be supplied

·         On small flasks having large necks, positioning may have to be made at an angle

·         Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements