4 inch dust separator cyclone dust collector kit for use with barrels trash cans buckets or custom built containers peachtree woodworking supply this cyclone kit will help protect your dust collector from unnecessary wear and tear. once installed on a barrel, box, or any container (barrel or box not included), this dust and debris separator keeps the larger, heavier chips coming from you machinery from getting into your dust collector impeller. this will ad years to the life of your dust collector and help keep your bag emptying chores to a minimum.