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Where space limitations prevent the use of round spiral duct, Oval tube is the answer. Our oval tube former will satisfy most Ductwork requirements in the Heating, Ventilating and Air-Conditioning industry. It will adjust to a variety of Round Duct sizes between 18”(450mm) and 60”(1500mm) diameter into Flat-Oval Ductwork.
Better air flow Lighter weight Easier to install Longer length between joints Very good lock seam, without leakage | Fewer hangers Joints easier to seal Often requires less space Aesthetically pleasing Fewer or no joints |
In same acreage, girth of rectangular is about 20% more than that of oval, e.g., rectangular needs more materials and so the cost is higher.