MODEL NO. 6406 is a rugged heavy-duty cylinder delivery cart designed to hold up to 40 D or E size cylinders while in transport or storage. Constructed with a high quality heavy-gauge angle iron steel frame, this unit was tested and load rated using heavier steel cylinders rather than light weight aluminum cylinders. Other features include (2) removable handles, for shipping and storage purposes, and large 6” heavy-duty plate casters (4 locking swivel – 2 rigid) that can be easily removed for repair, maintenance or replacement.