QUICKFIT® Stirrer Gland, ground cone NS 19/26

Manufactured from 3.3 expansion borosilicate glass complying with ISO 3585 (ASTM E-438 Type 1 Class A), Comprises parallel ground glass sleeve with cup to accept a suitable lubricant, Designed to facilitate the use of stirrer shafts with jointed glass flasks and vessels, Holds a vacuum down to 0.1 torr (13.3Pa), Supplied complete with screwcaps, rubber rings and PTFE washers, Provides a vapour-tight seal between paddle and flask