The 3-Inch x 20-foot PVC Dust Collector Hose - POWERTEC 70265 A practical, safe and cost effective dust collection hose designed to enhance your existing workshop dust collection and filtration systems. Flexible Versatility Whether you have an industrial vacuum cleaner or a centralized dust collection system built into your shop, you understand the importance of having a super lightweight, flexible and kink-proof dust collection hose that can withstand the rigors of everyday shop use. Heavy Duty Made from high quality PVC material, this hose will not collapse under pressure from your dust collector. PVC s durability, strength and easy installation make it ideal for workshop dust control, sawdust collection, carpentry and woodworking applications. Innovative Design Features Flaunts an impressively translucent body, reinforced by interior spiral spring steel wire allowing you to monitor your air movement performance, debris collection and fine dust separation/ filtration. Rated Safe With dust collection, one must always consider the dangers of static electricity and fire risk. This PVC hose features a flame retardant construction, is temperature resistant (up to 176° F) and is capable of electrostatic discharge (when grounded). It also offers exceptional resistance to chemicals along with acidic and alkaline materials. Product Specification Data Construction: Heavy Duty Soft PVC (Polyvinyl Chloride) Reinforced Spiral Spring Steel Wire: Spring Steel Wire Size: 3 inches diameter x 20 feet long Wall Thickness: 0. 5 mm / 1/64 Compression Ratio: 3: 1 Temperature Range: -50° F to 158° F (short term up to176° F)