Silicone Tubing, 1/2" ID x 7/8 OD"Flexible tubing for air, water, food, and beverage Durometer: 50A Semi transparent silicone rubber will withstand repeated use and sterilization Meets FDA requirements for use with food contact surfaces. Odorless, tasteless, and inert Good electrical and weatherability properties resists U. V., ozone, gases, and moisture 12. 7 mm ID x 22. 23 mm OD, 1 2" ID x 7 8" OD This soft, flexible tubing is odorless, tasteless, and inert and is suitable for air,