Where to get spare pills for UF-1406 + UF-1405??

Looking for spare pills for my UF-1406, and maybe for a UF-1405 some time in the future.

Factory aluminum is fine, copper/brass would also work as long as the price is not crazy.

Any ideas would be appreciated.

Thanks,
Jim

The 1406 and 1405 take different pills. I have no 1406 pills, but I MAY be getting some in about a month.

Please which diameter of pill thread is at 1405 and 1406?
thnx