Product review (5 stars): It fits OEM filter
It was the exact replacement for the OEM item # GXRTQ, for the ice maker on my refrigerator.
The bad thing about this filter is when you install it for the first time and it start making ice some of the ice comes black, is something that comes out of the filter.
I have to keep throwing out the ice on the tray until I see clear ice. Other brands of filters don't do this.