Woodstock Universal Step Reducer a versatile solution for dust collection needs with its innovative seven-step adapter design. This reducer allows you to customize the size by simply cutting away unneeded steps with a hacksaw, making it adaptable to various applications. The outside diameter step sizes available include 1", 2", 2-1/2", 3", 4", 5", and 6", providing a wide range of options to fit your equipment. Crafted with a durable 1/8" wall thickness, this step reducer ensures reliable performance and longevity in your dust collection system. Model Number: