Tritech Graphics provides pre-sales support for all of the products that we offer.
Both Eizo and Microplex provide excellent tech support in the unlikely event you have any problems or questions with their products. All in-warranty work is handled by the manufacturer.
You can contact Eizo directly at (800) 800-5202. 
You can contact Microplex at (800) 665-7798 or (604) 468-2444.