Clever mod - so they took a 3ml or so pod and just filled it with some silicone mastic
to lower the capacity to TPD 2ml - sounds reasonable I guess

Actually I'd be tempted to do this anyway, that silicone mastic could have a bit of a tang
or could become tainted by a strong juice, so even if you flushed the pod out
the pod could still have a tang in the silicone from the previous juice
So yeah I could see myself ripping it out anyway

Looks like a no 8 screw pan head philips/cross head
(would have been nice if vid metioned the screw/self tapper he used though, maybe a touch longer)
something a 1.5 inch no 8 screw but I'm guessing here - good mod, cheers for sharing sir