[Fit on] 190593GS Chemical Injector Kit is a replacement soap injector kit for various pump models, compatible with FAIP Pumps and Himore Pumps, as well as other select brands including Husky and Task Force. [Function] If the chemical injector on your pressure washer is worn out, rusted, or clogged due to hard water deposits, this kit can be used as a replacement. [Easy Installation] To replace: Follow the soap hose to the end to locate the injector. Use a wrench to remove the old injector. Clean any residue or dried soap from the receptacle. Ensure the rubber O-ring is in place on the injector. Insert the ball bearing into the injector, then place the spring with the smaller end against the ball bearing. Insert the assembly into the receptacle and tighten using a 13mm wrench. Do not overtighten, as this may damage the O-ring or crack the pump housing. Note: Installation guide is not included. Professional installation is recommended. Please verify compatibility to ensure this item meets your needs. Tips: Product design may vary slightly between batches. Minor differences in appearance or color may occur and do not affect functionality. Color: As shown Material: Copper Package Contents: 1 x Injector Kit The package includes only the items listed above; other accessories are not included. Note: Lighting and display settings may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.