【Introducing the 4" Pipe Hose Adapter by POWERTEC】This power tool dust collection adapter was designed to make quick and easy connections from your hose or pipe to a wide assortment of 4" dust collection fittings. As a coupler, the adapter acts as a bridge - making a secure and reliable attachment without the loss of airflow or dust collection performance. The adapter's hassle free design features a narrow end that fits onto standard 4" PVC pipes (for example, drain, waste, vent, etc), while the tapered end slides onto most 4" dust collection fittings, such as T's, Y's, elbows, blast gates, dust hood ports and more. The Dust Port is made out of high grade ABS plastic material - well known for it's lightweight construction, high abrasion and heat resistance, and long-term durability.【Introducing the PVC Hose and Key Hose Clamp Kit by POWERTEC】 This convenient assortment was designed to provide you with a high quality hose and clamp combo for your workshop dust collection system. It features a clear (transparent) dust collection hose that allows you to monitor dust & debris separation and vapor & smoke filtration. The hose, made out of heavy duty polyvinyl choloride is ideal for an assortment of sawdust collectors, indoor ventilation ducts and it's specifically designed to fit 4" dust collection system. The key hose clamps offer the perfect fit, not only for the included dust collection hose, but for many of your indoor/ outdoor at-home DIY woodworking applications.