Replacement Tube only.  ALC Tube  ( Aluminized Calorized steel tube ) and measures 142" overall length x 4" OD. 

WE suggest  ORDERING P/N 42186980 Replacement Turbulator.

This is a great heater if you still have one.  A true testimony to this American Made tube heater and is the factory OEM replacement tube. 

This tube does require delivery by Motor Freight.