GRAVITY CHROMATOGRAPHY COLUMNS Gravity chromatography column manufactured from medium wall tubing with PTFE stopcock and in-line reservoir for containing liquid buffer Standard Taper joint size 24/40 These columns may be used alone or in combination with 420575-2440 flow control adapter A coarse porosity glass frit (40-60 micron pore size) is a support for column packing material Custom sizes and plastic safety coating are available upon request Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements Column ID (mm) : 25 Column Length (mm) : 500 Nominal Volume (mL) : 245 Reservoir Capacity (mL) : 250 Stopcock (mm) : 2 Case Qty : 1