Bag clamps conveniently connect dust bags to spouts, as well as hoses and flexible ducting onto pipes and tubes. Produced by Lorenz & Son Manufacturing Company Ltd., Cobourg, Ontario, Canada, the clamps can be easily removed and also connect airveyor lines to permanent piping for quick change-overs. Requiring no tools for installation, the clamps can be secured in a matter of seconds since maximum torque can be applied with one hand. One-piece, stainless steel construction ensures a top-quality clamp for any connection requiring frequent access, especially for bulk handling or pneumatic conveying lines. All sizes, which range from 3 to 24 inches, are available with either a "T"-handle or a hexagon-shaped head.