Although I knew this was an aftermarket carburetor it is not as described first of all on the packaging or anywhere on the product does it claim that it is Tisco brand. Number two the picture depicts it as cast iron but in reality, the whole carburetor is aluminum the picture also depicts brass control knobs, which Are aluminum. The fuel line connector was brass, but would not thread properly into the carburetor so poor threading The carburetor worked. It was hard to stop a leak at the fuel line connector that co would not thread properly.