Austin Hardware in Texas has a good assortment of those at good prices. I didn't find that place until I'd already bought some from another vendor. I did order outside door handles from them and they are very nice.
Jimbo wrote:How do you lock these things? I looked at all the cab locks and can't find a keyhole.
The one in the photo is from my tear (a Hunter). It locks from the outside only (key). You could always give Hunter a call and ask them where they get them.
The ones my trailer use lock from the outside with a key in the handle. On the inside, I have the integrated inside handle, not the type that Kai showed in the picture. There is a small lever that locks the handle when you're inside to keep someone from opening it from the outside.