The steel is often much weaker than it is supposed to be, usually at the neck area where the parts are welded together.  Sometimes they explode wide open.  The one on the left severely burned the user. The one on the right tragically killed a mother of three in front of her children, husband, and friends at a barbecue.  

Then, to conceal the defects from the public, they silently replaced "MAPP" gas with "Map-pro" and silently "recalled" the cylinders...

But they did not inform the public.  The users and owners of these cylinders DO NOT KNOW that they are hazardous and that they have been recalled.

Worse yet, the recall does not state the real reason they are defective.  They are defective because they rip open and blow up.  That includes the propane cylinders that are not on the list!  We have the specification sheets, and it appears the cylinders are identical for the propylene and propane, but they only recalled part of the products.  We believe the real reason is that the recall is a misrepresentation of the defect.  They do not want the users to know what the real defect is.  The defect is in the welding compound used on some of the cylinders, and in the steel used on all of the cylinders.  In the Marmont case the cylinder that killed Ms. Marmont was a propane cylinder, not on the recall list.