Characteristics Conforms to FDA 21 CFR.177.2600 Conforms to USP Class VI Requirements Animal Derived Ingredient Free Silicone Tri-Clover Gaskets are available with collar for better grip and also without collar. Available in Red/Orange/White & Transparent colors Types T/C Gaskets Mesh T/C Gaskets PTFE Envelop Gaskets Sensor T/C Gaskets Validation T/C Gaskets Material of Construction Platinum Cured Silicone Fluoro Elastomer(FKM) EPDM PTFE