The RELION Foreline Trap, included standard with all new RELIOTRON Cathodoluminescence Petrography Systems, is available separately to anyone who desires to limit the back-streaming of vacuum pump oil vapors to a vacuum-based analytical system. Comes with KF25 flange connections top and bottom. An adapter is available to mount the trap to a pump with a KF16 inlet flange. KF clamps and o-rings with centering rings are available as needed. Replacement O-ring and filter media are available as spare parts. US$650 plus shipping (FCA Incoterms).