3/8" C (Female compression thread) x 3/8" (Female compression), Stainless steel faucet supply line. Braided stainless steel wrapped around reinforced braided PVC with Hex connector nuts, approved for residential, commercial, industrial applications where one must connect water supply fixture, Core of Virgin PCV is over-braided with polyester yarn then another layer of PVC then the inner core is over-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.