Cylinder Tank, also referred to as the Reservior for Meyer E-47 and E-57 units. Also fits E-46 units. This is the STANDARD 6" stroke Cylinder Tank, does not fit H Models (8" stroke). Bare unpainted steel. ***AS OF June 2017 this part is NO LONGER AVAILABLE from Meyer- it is OBSOLETE.*** We have (1) on hand as of 5-10-19.