Port Aperture Reducer, 0.5 in. Port, 0.125 in. Aperture, Flat Black, 819C and 819D Spheres

The 819M-B-0.12-0.5 Port Reducer is used to reduce the port size of a 819C or 819D Series integrating sphere from 1/2 inch to 1/8 inch. Flat Black. Comes with a 1.5 mm Allen wrench and M3 set screws.
