Fluidmaster water connectors are made from tough stainless steel wire, these connectors exceed all agency requirements. Every foot of this faucet connector contains 220 ft. of stainless steel wire and every fitting is secured in place with a special radial crimp, ensuring that your connector will last. And the inner core's large inside diameter keeps the water flowing. Highly flexible to resist kinks and quickly install. Upgrade your faucet supply line with Fluidmaster.