Back Box - Universally Designed for Concrete Floor Installation This unique floor box, designed for thin tile or carpet over poured concrete floors, provides a practical solution for power and audio/video cable termination and connection. Its dual door design allows full access to the interior of the box when making connections and provides a small cable opening when in service. The FL-2000 is offered with two standard insert plates. Both insert plates come with divided areas for power and audio/video. The audio/video section has a flat removable panel which can be custom punched for the contractor or specified by the consultant. The FL-2000 consists of 4 pieces: a seam-welded box, a screw on cover, an internal bracket, and your choice of insert plates. The cover is manufactured from 1/8" plate with hinges. To aid the contractor in the multiple phases of the construction process a temporary cover and leveling feet are supplied with the floor box. Note: This box is not applicable for direct contact with grade (soil or gravel). For grade applications, use the FL-GRD2/4 pour pan as a foundation before box installation. Each floorbox comes with a temporary construction cover. Please view the finished cover choices below. Boxes and covers are sold separately. FL-2000 - Requires Cover and Back Box COVERSFL-2000-BLK-C: Cover Black SandtexFL-2000-BRS-C: Solid Brass Cover - Hinged Door (No Flange)FL-2000-OAK-C: Cover Lt. Oak Sandtex BACK BOXES - Includes Steel Construction CoverFL-2000-B: Back BoxFL-2000-2D-B: Back Box w/bracket punched for 2 AC duplexes Note: All Optional Internal Plates will only fit the FL-1500 or FL-2000 models only and will NOT fit the FL-1500-2D or FL-2000-2D models. FL-2000 Series Optional Internal PlatesFL-1500-3GP: This model holds a standard 3 gang plate.FL-1500-4GP: This model holds a standard 4 gang plate.FL-1500-X12P: This model will hold 12 XLR. Comes with 7 XLR blanks.FL-1500-X18P: This model will hold 18 XLR. Comes with 7 XLR blanks.FL-1500-IPSP: This model can hold up to 18 IPS inserts! Comes with 3 double and 4 single space blanks.FL-1500-BAP: This model holds 6 XLR and 2 Speakon connectors.