Adapter, Lower Ground Mouth Size 24/40, Upper Ground Mouth Size 24/40, Overall Length 83 mm, USP Specification Type I, Product Type Adapter, Type Adapter, Material Borosilicate Glass, Color Clear, Autoclavable No, Features Designed with a Flange to Accommodate a Pluro Stopper, Pluro Stopper Sold Separately, PTFE Stopcock Permits Control of Vacuum Source, Standards Not Applicable, Upper Ground Stopper Size 2, ASTM Specification E438