Product #. Description. Add to Cart. SU860053. Crimp seals (magnetic) with PTFE/silicone septa, pkg/100 gold seal (magnetic, with 8 mm center hole), PTFE/silicone (blue PTFE/white silicone), diam. × thickness 20 mm × 1.5 mm, open center. pricing. SU860105. Crimp seals (magnetic) with PTFE/silicone septa, pkg/100 gold seal (magnetic, with 8 mm