Also make sure you turn off the water supply underneath the sink.
This Dishwasher Water Line Installation Kit connects the dishwasher to the house water supply. This kit includes (1) 6' EPDM water supply hose with (2) 3/8" brass compression fittings, (1) 3/4" brass swivel goose-neck fitting, (1) 3/8" brass elbow and installation instructions.