Originally Posted by PED
Bob, the left looks like silicone, any idea what the stuff on the right is?
I see the 330 # as well on the cap. Isn't he up to almost 500 PD's used currently?
Yeah, it is a silicone on the left. Hmmm, I am not sure about the right chamber but it looks like some kind of a foam? As far as I know he is very close to 600