A combination of the high performance, low pressure Michel-Miller Chromatography Line and Adjusta-Chrom Recycling Column. Top has adjustable fitting that allows for a bed height anywhere within 1 - 6" below thread. Plunger tip is all PTFE with a porosity C (25-50m) glass disc. Complete column supplied with adjustable plunging top fitting, 5801-14 bottom fitting with 1/4-28 tap and a three meter length of 1.5mmid PTFE tubing. See 5814 packing supports sized for #11 fittings like 5814-11 paper filter discs (not included).