Not sure if that is the proper name, but the bio I picked up does not have the hub/shroud for the tri laser system. It came with a reain piece for the hose connections and another smaller piece I am not sure exactly what to call it. Where can I buy (if it is available) the laser hub piece? I see in old post Don Jar is who to contact for the tri laser piece, I messaged him on ebay waiting for a response. Also what would you guys say is the best way to mount the resin cast piece to the bio and then smooth the seams out? I was thinking a two part epoxy followed by some 2 part plumbers putty.