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 inch 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).