Port Frame Expander, 0.5 to 1.0 in. Port, Flat Black, 819C and 819D Spheres

The 819-PC-0.5 Port Flange Diameter Expander is used to expand a 1/2 inch port of an integrating sphere to 1 inch, so that 1 inch size sphere accessories can be mounted. Comes with an Allen wrench and set screws.
