Braided stainless steel tube;3/4 in. FIP x 3/4 in. FIP;Use to connect water supply to water heater;Used to connect water heaters and other water connected devices to the water supply. Can be used with recirculating water systems that produce continuous use temperatures below 115 Degree F;Nut provides a full thread engagement resulting in a secure connection;No dielectric union needed with installation;Brass hex nuts are plated for corrosion resistance;Durable, flexible water heater connector requires no cutting or soldering during installation;Stainless Steel;The durable internal PVC tubing helps resist internal corrosion and mineral buildup;For indoor use;Temperature rating: 40 Degree to 160 Degree F, intermittent to 180 Degree F;Pressure rating: 125 PSI maximum;No lead certified;IAPMO listed to ASME A112.18.6/CSA B125.6 (includes NSF/ANSI372 and NSF61)