Please contact us for the best price and delivery time of Rittal DK 7338.221 DK EFD III, Early fire detection including smoke extraction system, Designed solely for use in closed, non-accessible enclosure systems, 4826 mm (19") rack mount, 1 U. We will submit your offer to you as soon as possible. You can contact us within the DK 7338.221 coded product or any product belonging to the Rittal brand.