Drain Hose for KitchenAid KUDS220T3

[superwash]

I am installing the KitchenAid dishwasher that I bought in August. It's a KUDS22 series.

The drain hose that was used on the dishwasher that was installed (a newer Whirlpool that we have had issues with) is the barbed kind, so it doesn't work.

What size hose connects between the check valve and the disposer?

 

[superwash]

I got it figured out and it's working great. I did have to replace the water inlet valve as well as the drain hose.