Vinyl supply tube. 1/2 In. F.I.P.S. or 7/16 In. O.D. slip-joint x 7/8 In. ballcock. Flexible hot and cold water connectors with solid brass inserts. 2 layers of specially formulated NSF and FDA approved polymer is reinforced with tough polyester braiding to create a flexible, reliable, and kink-free tubing with ample flow for all modern applications. Bulk flexible hot and cold water connectors. Complete and ready-to-use. No washers, rings, inserts, or sleeves are ever needed. Speedi Plumb's unique flexibility prevents any crimping or water blockage. Outside is made of polyester-braid reinforced PVC for extra long life. Inside is a nontoxic, synthetic polymer lining which withstands water temperatures from 5 Deg (degrees) F (Fahrenheit) to 230 Deg F. FDA certified for safe drinking water. All bulk water supply connectors are now provided with color coded flag labels - yellow for toilet hook up, green for faucet hook up.