Cylindrical vessel with a 2mm bore PTFE stopcock at top, GPI threaded angled side port, & #15 Ace-Thred at bottom that accepts a PTFE adapter with removable Por. C glass filter disc & a PTFE shut-off valve. PTFE adapter has front type seal using a CAPFE O-Ring to make a compression seal in the #15 Ace-Thred on Vessel. Other end of adapter has a 1/4" FNPT thread that allows connection of a 2.5mm bore PTFE shut-off valve with a luer extension. Supplied with a solid side prot cap. Complete: Vessel, PTFE adapter, CAPFE O-ring, and valve.