GRADUATED FUNNELS Cylindrical funnels have a pressure equalizing line, a glass stopcock, and a lower drip tip Graduations to the stopcock are numbered both up and down The 299251 and 299250 series are supplied with an 850400 glass hex-head stopper; the others are supplied without a stopper Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements Capacity (mL) : 50 Graduation Intervals (mL) : 1 Height (mm) : 275 Standard Taper Joints : 24/40 Plug Type : Glass Replacement Plug : 305751-0221 Stopcock Bore Size (mm) : 2 Top : Standard Taper, no Stopper Case Qty : 1