I have been searching for the little 4x6 coil for the GMX to use on my Garrett 24k for a few months, I now have all 4 coils that will work on the GMX,Garrett 24K, and Whites 24K picked up a 14x8 a few months back, and I will say that 4x6 is tiny in comparison to the 14x8 which is currently mounted on my 24K