Purchased to use with the Oneida Super Dust Deputy to make my dust collector into a two stage Cyclone unit. Works great, holds up to the 2HP DC without any signs of collapsing. I don't see or hear any leaking of vacuum around the seal. Band is a bit tight but still very easy to get off and makes for an easy way to dispose of the dust/chips that are collected. Would recommend this for anyone that is upgrading their DC to a cyclone using the Super Dust Deputy!