Like many of the other reviewers here, I was very disappointed to find that it didn't connect to the 1-1/4 inch vacuum hose as advertised. However, I have found a product that will work with any vacuum in the store and is much easier to use. amazon.com/dp/B01M27BN5Y/ref=cm_sw_r_u_apa_fab_8liIFbS8SS7CZ). This super flexible 1" hose comes with 4 (2 each) flexible rubber nubs that fit over the dust bag on the grinder (with the dust bag removed it's definitely tight enough to stay attached). There are also 2 smaller rubber hose ends that work with equipment that actually attaches to 1-1/4 hose. And 2 hard plastic that attaches to the 2-1/2" suction fittings on most industrial vacuums (or 2-1/2" vacuum hose fittings). It works great for me! # I have no affiliation with this or any other company that does business with Revain. I bought this product completely on my own and I have never received any compensation for any feedback. #