AMERCO does accept most cylinders from the welding, industrial, medical, refrigerant, and propane industries. See below for examples of accepted cylinder types:

Fire Extinguishers of all types accepted – except for  Carbon Tetrachloride.    
All propane cylinders accepted including disposable,  MAPP and propane.

Medical and industrial oxygen cylinders.

Steel and aluminum beverage and CO2 cylinders.

All refrigerant cylinders.

Both high and low pressure along with disposable  tanks.

All shapes & sizes of acetylene cylinders.

These are examples of common compressed gas cylinders that AMERCO can safely recycle. If you have cylinders that are not listed here please call (281)590-4311 or for current pricing and recycling.