Single-ply, helically corrugated aluminum alloy hose with a four-ply finished seam that is folded flat and crimped for tightness and strength.
This hose is light weight and hand bendable which allows for elbows and turns to be formed easily during installation. It has a self-supporting construction that allows for these bends to stay in place. It also resists metal fatigue, weathering and the most corrosive fumes & chemicals. It's not recommended for continuous flexing.