Manufactured by New Age Industries, Silcon Silicone Tubing is able to withstand extreme temperature variations from -100 degrees F to 500 degrees F. It is odorless, tasteless, inert and made from FDA sanctioned ingredients. The translucent natural color allows visual contact with the flow of the product. The excellent bend radius permits installation into restricted spaces without impeding flow. NSF certified. 5/16 inch ID; 1/2 inch OD. Sold by the foot.