Fluidmaster PRO Series Connectors offer the best in durability and protection. No other connector in the market can match the toughness of a PRO Series Water Supply Line. Made of a tough polymer core encased in braided stainless steel wire, these connectors exceed all code requirements for flexible water connectors. Backed by a 10 year warranty. Here the PRO6F20 PRO Faucet Connector, offers a 3/8" Comp x 3/8" Comp fitting and a 20" length. Trust Fluidmaster PRO Series Connectors when replacing your faucet supply line. Fluidmaster® PRO SERIES™ Faucet Connector, 3/8 in Nominal, Compression, 20 in Length, 125 psi Working, 40 to 150 deg F, Braided, Stainless Steel, Import