Slurry Reservoir Kit, All-PEEK, for packing 2.1 mm ID columns that are very short length. Reservoir is 50 mm long with a 4.6 mm ID, complete with all parts and accessories needed to pack bioinert All-PEEK columns. ARE-Applied Research brand. 1 EA.Additional Info:This kit is for packing All-PEEK columns 2.1 mm ID x 30 mm long or shorter.The Reservoir Body included in this kit is 50 mm long with 4.6 mm ID and has an internal volume of approximately 0.8 ml. This reservoir is equipped with 1/2-20 external threads on both sides. The adapter has an internal 1/4-28 screw thread on one side and internal 1/2-20 screw threads on the other side. The adapter connects the reservoir to the column being packed.