Black pressure washer Hose 5/16 with 3/8" ends - The twin wire braid reinforcement helps the hose withstand the high pressures up to 400 Bar (400 bar is around 5800 PSI which is very high pressure) - The high quality cuffs and connections will reduce leaks and ensure a secure connection to the washer pump and spray wand - The heavy duty construction makes it suitable for tough, industrial pressure washing applications where reliability and durability are important This hose seems well suited for professional use where high pressure and durability are essential. The twin wire braid, high bar rating and heavy duty cuffs point to a robust hose that can handle demanding pressure washing jobs.