A while back I bought the subject system slightly used. These drum chucks are very robust!
The previous owner couldn't find the glue-ring cap for the smallest 3-1/2" chuck (looks like these caps are used to apply new neoprene seals). Oneway sells this part for about $25 to my door but I noticed there is a vendor (Rubber Ducky - ha mean chucky - thanks roger) that sells a set of silicon seals for all three drums for around $50.
1) Is it really necessary to have the cap to replace a new seal?
2) Anyone have experience with the Rubber Ducky seals on these chucks?
Thanks,
Mike