Item #: 3798586 Back-Flush Hose for Therminator\ Optional back-flush hose accessory is used to flush the wort side of the chiller after use. This hose assembly is an 18" length of 1/2" ID braided vinyl hose with a garden hose thread on one end, and a QuickConnector on the other. Both fittings are factory assembled to the hose with Oetiker clamps. Optional back-flush hose accessory is used to flush the wort side of the chiller after use. This hose assembly is an 18" length of 1/2" ID braided vinyl hose with a garden hose thread on one end, and a QuickConnector on the other. Both fittings are factory assembled to the hose with Oetiker clamps. $20.00