This is an all-stainless steel 3-inch 300 CFM Air Dredge Twin venturi vacuum pump, also called an eductor or jet pump. The Air Dredge works like a very powerful vacuum cleaner, sucking up debris and blowing it out the other end. Plastic pipe can be used to direct the output into a dumpster or other container - filter fabric can be secured over the container to control dust. The Air Dredge can deliver granular materials, like gravel and float rock, to inaccessible areas though inexpensive ABS plastic pipe - up to 50 feet, though 4 pipe.
See my other listings for a special 3"-to-4" ABS pipe adapter. Two Chicago twist-lock air hose couplings are included. For maximum power, the Air Dredge Twin requires 450 CFM at 150 psi. Make sure your compressor can deliver enough air - the Air Dredge is normally used with a diesel-powered compressor. Main body tube is 3" OD, and will fit into 3" plastic and metal pipe, and into 3 ID hose.If you already have a big air compressor, this Air Dredge would be a very nice accessory. The item "Air Dredge Twin 300 CFM Venturi Pump Vacuum Cleaner For Mud, Rocks, Debris" is in sale since Saturday, September 14, 2019. This item is in the category "Business & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Other Hydraulics & Pneumatics". The seller is "appolodorus" and is located in San Luis Obispo, California. This item can be shipped to United States.