The Cobra™ Hose 4640 is built for high-pressure sewer cleaning and water jetting. Cobra™ Hose 4640. Sewer Line Jetting. Cover: "Tuffskin" Polyurethane for max wear resistance. Use It For 1/2" 0.890" 4.0" 4,000 10,000 19.5 SC.
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