3/8" C (Female compression) x 3/8" O.D. tube. Stainless steel faucet supply line for Delta faucets. Braided stainless steel wrapped around reinforced braided PVC with hex connector nuts. Approved for residential, commercial, industrial applications where 1 must connect water supply to fixture, Core of Virgin PVC is over-braided with polyester yarn then another layer of PVC then the inner core is braided with 304 stainless steel to form the strongest flexible supply line with superior hydraulic multi-crimp brass inserts, chrome-plated nuts, and Nitrile washer for tight seal. Maximum temperature: 180 deg. F. Maximum pressure: 125 P.S.I., NSF, IAPMO, and CSA listed. Manufactured to include no more than 0.25% weighted average lead content on wetted surfaces.