Single-Ply Black Neoprene Brake Duct Hose Rated to 300° F Sold in 10 ft. lengths Features: * Single-ply Neoprene Coated Woven Fiberglass Hose Construction With An External Filament Fiberglass Cord Reinforced With A Spring Steel Wire Helix * Designed For Moderately High And Low Temperatures * Suited For Air Handling Applications At Low Positive And Low Negative Pressures * The Narrow Pitch Allows For Tight Bending Radius While Maintaining A Smooth Air Flow * Extremely Light Weight And Flexible * Non-kinking * Not Recommended For Continuous Flexing