5/16 inch rubber hose food grade with ptfe insideStainless Steel Hose - Rubber Hose Pipe and PTFE Hose . Stainless Steel. Nominal Size. 1/4" to 12". Material Grade. SS 304,321,316. we “Hoseflex India” is a Sole Proprietorship based firm, engaged as the foremost Manufacturer and Supplier of Braided Hose, Food Grade Hose, Stainless Steel Hose, Teflon Lined Hose and Rubber Hose Pipe and many more.