corroded tube in the upper rack water delivery arm

I was told I needed a whole new dishwasher arm, that I probably would not be able to change myself. Described the part of the part in your description area and lo and behold, there it was..
Could not find it anywhere else.
Very proud of myself for fixing it. I did not need any tools. Just removed the old corroded tube and attached the new one.
thanks so much for the web site images and descriptions. (And I normally am very computer /technology challenged) Very user friendly site