Reduce potential accidents and theft of costly cylinder contents. Designed to fit most North American gas cylinders, the Safety Snap Cap restricts access to the main cylinder control and regulator attachment, providing a lockout device that prevents unauthorized use. Simply mount cap to cylinder and attach regulator, close cap and attach padlock. Design allows access to the valve handle without having to remove the cap and replace the regulator each time cylinder is needed. Welded steel construction and powder coated finish provides many years of use.