Introducing the 4 in. ID/OD Dust Collection 90° Elbow by POWERTEC. If you're a woodworking enthusiast or DIYer looking to streamline your dust collection setup, look no further than this 4 in. ID/OD 90° Elbow. This innovative accessory solves the common problem of connecting 90° elbows directly to 4 in. ID hoses and to 4 in. OD pipes, ports, fittings, or blast gates at a right angle. No more fumbling with adapters or struggling with incompatible sizes - this elbow is designed to make your life easier. This elbow is engineered with a unique dual-diameter feature, unlike other 90° fitting, this innovative design allows the fitting to connect directly to your port, fitting or blast gate, on one end, without additional unions or coupling, and to your 4 in. ID hose on the other, while producing 90° change in the direction of flow. Crafted from rugged, impact-resistant ABS plastic, this elbow is built to withstand the rigors of your workshop. The clear design allows you to visually monitor dust flow, ensuring optimal performance and quickly identifying any clogs or obstructions. The full 4 in. inner diameter of the 90° bend ensures minimal air resistance, allowing your dust collector to work at its full potential. Whether you're using a shop vacuum, dust collector, or any other 4 in. hose/pipe setup, this elbow is the perfect addition to your dust collection arsenal.