[Fit on] 190593GS Chemical Injector Kit is the replacement soap injector kit for various models pumps, fits many other brands with FAIP Pumps and Himore Pumps, such as for Excell DeVilbiss, for Troy Bilt, for Husky, for Campbell Hausfeld, for Generac, for Coleman Powermate, for Ridgid, for Task Force, for Faip, for Homelite, for Brute, for Duracraft, for Simoniz, for Simpson, for John Deere, etc. [Function] If the Chemical Injector on your pressure washer is worn-out, rusted or hard-water-deposit clogged, you can replace it with this set. [Easy Installation] How to replace: Follow soap hose to end and you'll find injector. Take off soap hose. Use wrench to remove old injector. Clean out any gunk or dried soap in receptacle. Make sure rubber o ring is on injector. Put ball bearing inside injector and then the spring with small end of spring against the ball bearing. Insert injector into receptacle and tighten injector with 13mm wrench. Don't overtighten, you'll break the o ring or crack white metal on pump. Note: Installation guide not included, we strongly recommend you seek professional installation. Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use. Color:As shown Material:Copper Package Contents: 1 * Injector Kit