top port of the 1120 can? October 12, 2017 Solutions Central › Category: Choke › top port of the 1120 can? 0 Vote Up Vote Down jimmolinaro asked 7 years ago The threaded top port of your pressurized 1120 can,,,, is it completely sealed and needs to be pierced? Or does it have the hole with the rubber seal? 1 Answers 0 Vote Up Vote Down chemtooler Staff answered 7 years ago It is sealed and needs to be pierced. Please login or Register to submit your answer Username or Email Address Password Remember Me