Power steering hose leak

[DoubleARanch]

Well i just saw today i have a power steering leak. the oil is building up on top of the steering box. and i touched the hose that runs on top of it and and feels like it has been rubbed through. i tried to see where that hose goes and it looks like it goes to the power steering cooler. but i cant find that hose anywhere to buy. do any of yall know where i can or if i have to buy the whole cooler assembly. any help is appreciated..thanks