DescriptionDURAN PURE Premium Cap from TpCh260 TZ w PTFE coated silicone seal, temp. resistant from -196 to +260°C, without colorants, USP/FDA standard conformity, GL 25 SpecificationsFeaturesDocuments DURAN PURE Premium Cap from TpCh260 TZ w PTFE coated silicone seal, temp. resistant from -196 to +260°C, without colorants, USP/FDA standard conformity, GL 25 Material TpCh260 For chemical and thermal resistance, see our chemical and thermal resistance page.