Pre-equipped for extraction and ventilation, the waterproof Dark Room II Twin DRT200 comes with equipment bars to support grow lights, fans and carbon filters. The grow tent frame supports up to 65 lbs. Lined with 95% reflective hammered effect mylar fabric to increase light intensity and improve light distribution. There are two growing chambers that you can set up independently side-by-side or attach the smaller grow station on top of the larger, as shown in the photo. Smaller grow chamber measures 23.6" (1.97') tall, includes zippered front door, 2 ventilation ports, cable sock, 2 equipment straps, removable waterproof tray and thermo insulation under floor of tent. Larger grow chamber measures 59" (4.92') tall, includes zippered front door, 2 ventilation ports, cable sock, 2 equipment straps, removable waterproof tray and intraction sock. 400W HID lamp recommended. Model number- DRT90.