Fitter Ring Adapter
Fitter Ring Adapter. Used to install a standard shade with a 1-3/4" hole into a fixture with 2" - 2-1/2" Fitter rings with 3 screw mounting.
Made of Aluminum. Made in the USA.
This makes it possible to install into many types of customer's older style and antique fixtures and lamps. Once installed, the aluminum piece is not visible.