On the Surf PI 1.2 what commercial coils will work?

[Joe(TX)]

Wondering if the original Garrett Sea Hunter pi coil would work? Also will the Whites TDI coil work? Thanks Joe

[Qiaozhi]

Wondering if the original Garrett Sea Hunter pi coil would work? Also will the Whites TDI coil work? Thanks Joe

The Whites TDI coil should be compatible.

A Garrett Sea Hunter Mk2 coil will also work, but you need to connect the two loops in series.
14"x10" coil:
Orange & White/Orange = 122.8uH
Blue & White/Blue = 126uH
With Orange & White/Blue connected together, and likewise for Blue & White/Orange, the total inductance = 515uH.