... size any is available 3.Certificate SGS FDA LFGB medical extension tube Features for silicone tube(1) Temperature range: ... , no toxicity, no contamination (environmental friendly)(2). Resistant to high temperature, aging, radiation, cold, heat,Acid, Chemical(3). ... ,General laboratory etcAny questions,please feel free to contact with me. SILICONE medical extension tube with FDA,LFGB ROHS CERTIFICATE