The Generac 6130 4000-PSI Twin Barrel Premium Replacement Spray Gun has a longer barrel which provides extra stability. The Generac 6130 is made with a thick padded cushion grip with an easy-to-pull reverse trigger which provides greater comfort and reduces hand fatigue so you can work longer with less effort. The male M22 threaded connector fits many brands of pressure washer and requires an M22 female thread for wand end and an M22 threaded lance (sold separately). Replace or upgrade your spray gun with the Generac 6130 Twin Barrel Premium Spray Gun with insulation and fatigue-free design to alleviate the numbing effects of continuous use. The Generac 6130 accepts the Side Grip Generac 6131 accessory handle (sold separately). The Generac 6130 Pressure Washer 4000-PSI Twin Barrel Premium Replacement Spray Gun comes with a limited 90-day warranty. Generac manufactures the widest range of power products in the marketplace including portable, RV, residential, commercial and industrial generators. At Generac, we protect the things that power your life by providing quality, affordable power solutions.