Middle Atlantic WRK Series Gangable and Stand Alone Rack Enclosures Choose a WRK Gangable Rack Enclosure when multiple racks need to be joined or when open sides are desirable for easy access to cables and components. Middle Atlantic VRK Series Narrow 19" Gangable Multi-bay Rack Enclosures Optimized for Video Cable Bundles Middle Atlantic ERK-4425-AV Configured A/V Rack Enclosure 44 - 19" Rackspace x 25" deep. Complete with Integrated fan top, front and rear doors, Lacer strips and bars, Power strips, leveling feet and mounting hardware. Middle Atlantic ERK Series Welded 19 inch Standalone / Gangable Rack Enclosures Configurator Middle Atlantic ERK Series Ready-to-Assemble 19" Rack Enclosures Configurator Middle Atlantic PTRK Series 19" Portable Racks