Crimp seals, 11 mm, with PTFE/rubber septa. gold aluminum seal, size × thickness 11 mm × 1.0 mm, septum (TFE/butyl/red rubber), pkg of 100 ea. green aluminum seal, size × thickness 11 mm × 1.0 mm, septum (TFE/butyl/red rubber), pkg of 1000 ea. red aluminum seal, size × thickness 11 mm × 1.0 mm, septum (TFE/butyl/red rubber), pkg of 1000 ea.