Designed to be installed in above grade concrete floors while maintaining the fire classification of the floor. This box is classified for use in 2-hour fire rated floors. Box comes complete with all components needed for initial installation. Included components are: protective/ disposable cover, tunnel system for connecting the two modules of compartments, fire classified pan, two (2) removable modules, four (4) 1 1/4 trade size intumescent conduit feeds and two (2) cable management guides. Items not included with the box and sold separately are: receptacles, communication jacks, and A/V devices and device plates. NOTE: For use on bare (polished) concrete or terrazzo floors EFB610-CTR must be used. (Sold separately.) Designed for new construction applications. Consult structural engineer before making cuts into decking. Add additional supports as instructed by the structural engineer.