The VICI Metronics mercury trap utilizes a proprietary adsorbent to remove trace mercury vapor from gas streams. This trap will ensure better "zero's," and can even be used after your mercury analyzer to prevent any trace mercury from venting to the environment. Connections are made with 1/8" or 1/4" stainless steel compression fittings. Both versions are rated for a maximum pressure of 1000 psi, with a maximum flow rate of 20 lpm.