A. This carburetor for lawn mowers is specifically designed for certain models of engines. It is suitable for engines such as Honda GX31, GX22, FG100, and 139F 1.5 horsepower. It can provide precise fuel supply for the lawn mower, ensuring its stable and efficient operation. B. It adopts a flat - suction vacuum diaphragm plunger carburetor structure. This unique design can not only precisely control the mixture ratio of fuel and air to improve fuel utilization but also enable the engine to maintain good performance under various operating conditions. In daily use, it can help the lawn mower easily handle different working environments and tasks. Whether it is a quick trim of a large - area lawn or a fine - tuned treatment of corners, it can be completed efficiently. C. It is popular in regions such as Europe, South America, Southeast Asia, North America, Northeast Asia, and the Middle East, and is recognized and trusted by consumers. D. If you are troubled by the power and fuel problems of your lawn mower, this carburetor could be a good choice for you, bringing you a new experience and higher mowing efficiency.