FDA EPDM SANITARY GASKET FOR 3″ TUBE TRI-CLAMP GASKETS ARE SEALS MADE OF FDA MATERIALS ARE DESIGNED TO FIT THE GROOVES OF TRI-CLAMP TUBE FITTINGS USED PRIMARILY IN FOOD PROCESSING LINES, AS WELL AS IN THE PHARMACEUTICAL AND BIOTECH INDUSTRIES. THE UNIQUELY DESIGNED SHAPE PROVIDES A TIGHT SEAL FOR EXTREMELY HIGH PURITY, WHICH MEETS ALL THE NECESSARY STANDARDS FOR MANUFACTURERS. EPDM HAS GOOD RESISTANCE TO WATER, CHEMICALS, ANIMAL AND VEGETABLE OILS.