These gaskets are for Tri-Clamp style fittings and come in a wide variety of materials to match your specific process needs. All gaskets meet USDA, 3-A and CGMP criteria. FDA Compliant. All silicone, EPDM, PTFE, and Viton gaskets are animal-derived ingredient free and meet USP Class IV and cytotoxicity criteria. Contact for other sizes or materials. Platinum-cured silicone is ideal for most pharmaceutical, food, and beverage processing applications. Odorless and tasteless to ensure media purity. May undergo SIP. Usable from -58 to 446¿F (-50 to 230¿C). Viton offers excellent chemical resistance, especially to many acids and alkalis.