Product Descriptions Fitment: 190593GS Chemical Injector Kit is the replacement soap injector kit for various models pumps manufactured by Briggs and Stratton, fits many other brands with FAIP Pumps and Himore Pumps, such as for Excell DeVilbiss, Troy Bilt, Husky, Campbell Hausfeld, Generac, Coleman Powermate, Ridgid, Task Force, Faip, Homelite, Brute, Duracraft, Simoniz, Simpson, John Deere, etc. Function: If parts on your high pressure washer pump are worn, rusted, or clogged with hard water deposits, you can replace it with this set. This will make your high pressure washer pump smoother to use. .