7-Neck PTFE Reaction Vessel Lid, 100mm, 24/40 Outer, 92mm Overall Height. Reaction vessel lid is constructed entirely of PTFE. Low-form lid has seven openings: (A) center neck 3/4 female NPT for PTFE standard taper adapter, (B) side necks 3/4 female NPT, vertical for PTFE standard taper adapters, (C) side neck 1 female NPT with 10 X 10 compound angle for PTFE compression fitting used with Lasentec Probe, and (D) side necks 1/4 female NPT. Lid is supplied complete with listed PTFE standard taper adapters for center and vertical side necks, 14mm PTFE compression fitting for 10 X 10 compound angle side neck, and three 1/4 male NPT PTFE plugs. For clamp see CG-141 or CG-141-T. For o-ring see CG-147. Special neck sizes and configurations are available. Please contact us for details. PLEASE NOTE: DUE TO SPACE CONSTRAINTS ON THE LID, WE RECOMMEND USING THE CG-2077 OR CG-2077-H 10MM PTFE BEARING WITH THE LOOSENING NUT REMOVED.