Used when installing OMT-100A or OMI-100 to a vacuum pump with an exhaust port screw diameter of G3/4. For screw diameter conversion G3/4⇒G1
Compatible models: G-20DA, G-50DA, G-50SA, GLD-040, GLD-051, GLS-051, GHD-031
Applicable oil mist traps: OMT-100A, OMI-100
