Appliances are displayed much better on Sears.com than on this website. That way you can see all of the specifications including the dimensions in a better format.
This is the portable dishwasher on Sears.com: sears.com/ge-appliances-gpt145sslss-18inch-portable-dishwasher-stainless-steel/p-A065387331?sellerId=SEARS
When you click on Add to Cart on Sears.com, a pop-up will show up asking about delivery, installation, and the installation kit. If you already added it to cart on Shop Your Way, it will be in your cart on Sears.com, in that case click on your cart, and then click on "Options and Services make your selections" to get delivery and installation options.
Here are all portable dishwashers: sears.com/appliances-dishwashers-portable-dishwashers/b-1020285?searsTab=true
All regular dishwashers: sears.com/appliances-dishwashers/b-1020017?searsTab=true
If you need help ordering, call Sears Customer Service at 1-800-697-3277.