Circular cylinder in-line The thickness :1.2 mm Material steel: Drum 304/Stern tube 304 /Over 202 Inlet diameter is 51 mm Diameter of 89 mm Drum diameter 114 mm Total length of 45 cm Tail mouth to funnel model Air intake 51-63 - mm diameter can be done The outlet is 76 mm Tail nozzle with single highlight oblique mouth - the flat