seal diam. 11 mm, PTFE/red rubber septum, pkg of 100 ea. Expand. Hide. 854140. silver aluminum seal, seal diam. 11 mm, pkg of 100 ea. Expand. Hide. 854188. gold aluminum seal, size × thickness 11 mm × 1.0 mm, septum (TFE/butyl/red rubber), pkg of 100 ea.