QUICKFIT® Digestion Tube, 300x42mm, plain beaded neck, 250mL

Manufactured from 3.3 expansion borosilicate glass complying with ISO 3585 (ASTM E-438 Type 1 Class A), These tubes are available with either a plain beaded neck or a ground socket joint, The tubes with the ground socket neck can be used with air condensers, etc., Designed for use with blockheaters