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Minelab 18” Commander or Detech 15” Ultimate Spiral DD with my new GPX?


Ordering a new GPX 4500 for relic hunting. In addition to the coils that come with it, should I get the commander 18” or the Detech 15”?



Well-known member
I've never used the 18" coil. I have the 15" ultimate coil. Its heavy. It's also deep. I've dug 16" bullets with it regularly. They say the 18" coils are deep also. The only thing is they're not waterproof. The 15"coil is.