Compatibility: For Solo 423 425 High-quality material: This carburetor is made of high-quality aluminum alloy, sturdy and durable, anti-rust and corrosion resistant, has a long service life, low consumption, fast acceleration, quick start and stable operation. Rotate to engrave; 180 degrees: The flexible rotation design of the carburetor can effectively prevent the chainsaw from blocking and work quickly and efficiently. It can be used directly as a spare part, with stable performance and high efficiency. Greatly improved work flow.