Fido's Fences Brand
Fido's Fences Brand FF-7. Guaranteed to work with all R7, R7m, R12 and R12m collars.
FF-1 Invisible Fence Compatible Battery
FF-1 Invisible Fence Compatible Battery 2 Pack
FF-1 Invisible Fence Compatible Battery 10 Pack
Invisible Fence Compatible Battery Plan
Dogwatch Compatible Battery Plan