Converts standard flasks and other apparatus to Airfree applications. With top outer and lower inner standard taper joints, both being the same size. Available with a choice of a 2mm high vacuum glass stopcock having a S.S. constant pressure retention device or a 0-4mm Airfree inlet valve. 2mm Glass Stopcock, Airfree, Schlenk

If you need any other size or other Ground joints,please contact with us

Be Made From G3.3 Borosilicate Glass

Annealing Point ------560℃

Linear Coefficient of Expansion------ 33×10-7/℃

Softening Point------820℃