Crushproof ACT400 Exhaust Hose 4 In. X 11 Ft. For Gasoline/Diesel Truck Crushproof 4" x 11' ACT Hose. Designed for use with larger gas vehicles and diesel trucks. Without wire reinforcement. Crushproof 4" x 11' ACT Hose. Designed for use with larger gas vehicles and diesel trucks. Without wire reinforcement.