This fritted filter funnel is available with your choice of a coarse or medium porosity fritted disc. The lower outlet is a standard taper inner joint and has a 0-4 mm Chem-Cap® PTFE plug. The top inner joint is the same size as the lower inner joint. The sidearm is your choice of a 2 mm glass stopcock with constant pressure retention device or PTFE Airfree®¨ valve with integral bore and serrated hose nipple. Available in 60 mL and 200 mL capacities and two joint sizes. The capacity listed is that above fritted disc. Disc diameters are 30 mm on the 60 mL sizes and 40 mm on the 200 mL sizes.