Introducing the Dust Collection Hose Kit by POWERTEC. 2-1/2 in. x 10 ft. PU Dust Collector Hose: Designed to enhance your existing workshop dust Collection, Filtration and fume ventilation systems, flexible versatility. Whether you have a centralized dust collection system built into your workshop or are in need of a flexible hose option for your CNC router dust shoe, you understand the importance of having a maneuverable, abrasion resistant and kink-proof dust collection hose that can withstand the rigors of everyday shop use. Threaded Quick Coupler: This 4 in. to 2-1/2 in. dust collection coupler provides you with a portable, versatile and convenient solution to attaching your industry standard machines to dust hoses (and fittings). With its right hand threaded design, this quick connect attachment doesn't require hose clamps - thus eliminating the need to constantly connect and disconnect your components each time a new machine is used. Its equipped with a taper end that allows for a snug, secure and airtight fit. 2.5 in. Key Hose Clamps: Commonly used to connect hoses to dust hoods, blast gates, connectors and other fittings - these keyed hose clamps can also be an essential accessory for connecting dryer vent hoses and other tubed connections. With its premium stainless steel construction and 2-3/4 in. clamping capacity, this clamp will resist scale and will not rust - delivering a tight and optimal seal under a variety of environmental conditions.