3" Viton 50 Mesh Screen Tri Clamp GasketsThese Viton screen gaskets are a practical purchase for anyone doing closed loop BHO extractions as these gaskets are food grade and recognized as safe and sanitary. Viton is capable of withstanding high temperatures while retaining its good mechanical properties, and is better at it than most other elastomers. The oil and chemical resistance are virtually unaffected by elevated temperatures, and the compounds remain relatively elastic up to