The S.S. Fixed Chemical Injector F-M Connector is an efficient accessory designed for high-pressure cleaners and is widely used in cleaning and disinfection tasks. The syringe can accurately suck in detergents, chemical liquids or disinfectants and mix them with high-pressure water flow to form an effective cleaning solution, which greatly improves cleaning efficiency or performs precise disinfection. The syringe is connected to the pump outlet of the high-pressure cleaner and is equipped with a small-aperture nozzle inside. The structural design of the F-M connection ensures efficient suction of the liquid in the syringe. When the chemical nozzle is connected, the pressure difference caused by the aperture difference will trigger a siphon effect, activate the one-way valve and suck in the required liquid, so that it is fully mixed with the water flow, ensuring that the detergent or disinfectant is evenly sprayed to achieve the ideal cleaning or disinfection effect. Unlike traditional designs, the F-M connection method is more stable, simplifies the installation and removal process, and provides a more efficient and convenient operating experience.