Scroll down to a post title "Midwest Box Blades" . I just bought a box blade from them. Top notch customer service...to say the least. They are listed as a dealer on Midwest's website. The box blade looks like a Midwest, but I am not 100 % sure. The quality is great, its heavy, its well built, etc. The kicker with Corriher is they have extremely low shipping charges. I got a 670 # box bvlade delivered from NC to MA for $50.
Just to be clear...Corriher brands equipment made by someone else. They are not a manufactuer ...they're dealers.