[Fit on] 190593GS Chemical Injector Kit is a replacement soap injector kit compatible with various pump models, including FAIP Pumps and Himore Pumps. It fits many other models such as Husky and Task Force. [Function] This kit can replace a worn-out, rusted, or clogged chemical injector caused by hard water deposits on your pressure washer. [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 to avoid damaging the O-ring or cracking the pump housing. Note: Installation guide is not included. Professional installation is recommended. Please verify compatibility before purchase. Tips: Product design may vary slightly between batches. Minor differences in appearance or color may occur due to manufacturing updates. These variations 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 color differences between the image and the actual item. Measurement error allowance is +/- 1-3 cm.