1 x Hose (50FT):This refers to a single hose with a length of 50 feet. It is likely the main sewer jetting hose included in the package Non-Marking Cover:The hose cover is non-marking, meaning it won't leave marks or streaks on surfaces while in use. This feature is particularly beneficial when working on delicate or easily broken materials Maximum PSI:The hose has a maximum pressure rating of 4000 PSI (pounds per square inch), indicating its ability to handle high-pressure water flow generated by pressure washers. This rating allows for effective and efficient cleaning of dirt, grime, and other trashs from different surfaces Couplers Included:The hose comes with couplers included. These couplers are fittings that enable easy and secure connections between the hose and the pressure washer or other equipment/accessories. Having the couplers included saves time and ensures compatibility with standard pressure washer connections Feature:the 50' Pressure Washer Hose Non-Marking - 4000 PSI is a durable and versatile hose suitable for various pressure washing applications. Its gray color, non-marking cover, and included couplers make it a convenient choice for users looking for an effective hose solution for their pressure washing needs. " This Non-Marking Pressure Washer Hose is the perfect replacement for any pressure washer rather it be a top of the line washer or a home-owners model. This hose has standard male 3/8" ends that adapt to all 3/8" plugs and couplers. Great for any kind of pressure washer application.In gray.