Description: Replacement pump kit with near-universal compatibility for standard 1-inch shaft direct-drive gas engines from Honda, Annovi Reverberi, RIDGID, Blackmax, Generac, Husky, Excell, Troy-Bilt, Sears, Briggs & Stratton, Campbell Hausfeld and more. Forged brass and anodized aluminum construction with cooling fins; Durable 15 mm ceramic-coated solid stainless steel plungers. Detachable and pressure-adjustable internal bypass unloader valve with detergent injector and built-in water filter; Triplex plunger pump mechanism; Sight glass for oil inspection. Replacement pump kit for gasoline-powered horizontal engines.