1.Flexible metal hose with high temperature resistant, anti-corrosion performances. 2. The common specification is ... ability, smooth insidestructure makes it easy to go thread. 2. High waterproof, insulated, chemical resistance 3. PVC sheath, adding in composition ... -1/4", 11/2", 2", 2-1/2",3", 4" High Quality! Low Price!! Flexible Metal Hose