NEW & Improved Dust Deputy Deluxe System w/BucketThis Vacuum attachment is designed and compatible for 11" & 14" K&M Krushers. Its to be attached to the exit port of the crusher then attach a 2 1 8" hose to the round exit port and then attach to your Shop Vac or if you are using a Dust Deputy Cyclone (Official Oneida Products) to the side port or opening of the Cyclone. To attach the Vacuum Port, slide it completely up on the crusher then tighten the 5 16" bolt provided and lock it down with the 5