The 4-Inch x 20-foot PVC Dust Collector Hose. 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. The 4” to 2-1/2” Cone Reducer. This limited adapter was designed to provide you with a simple solution to coupling your 4-inch ID dust hoses with 2-1/2 ID dust hoses. Specifically, it allows you to step down from a larger main line to a smaller branch line without compromising air velocity or the effectiveness of your dust collection system. It features a premium, heavy walled ABS plastic construction made for durability and to withstand the wear & tear commonly associated with woodworking dust collection. The Three-Machine (4-Inch) Dust Collection Kit by POWERTEC. This upgraded kit provides you with a quick and versatile assortment of connectors and fittings to optimize your 4” dust collection multiport system. Perfect for connecting your dust collector with 4” flexible dust collection hose (not included) to three separate machines, the assorted mix of elbows, y-fittings blast gates and clamps gives you everything you need to customize and meet the needs of your dust extraction or woodworking project.