Each floor box is furnished with removable non-metallic chamber plugs for internal wire routing between chambers. Features: Six large compartments suitable for datacom and power devices. Strong, one-piece cover/flange holds up under load and abuse. Two cable doors. Fully adjustable before and after the pour. Cover accepts carpet inserts. For carpeted floors only. Available in cast iron and stamped steel. Dedicated plates accept duplex/106, Round/Decorator and blank profiles. AV multimedia connector capability. Latch turn handle on all covers keeps cover locked and makes cover easy to open. Puc riser is cut flush with concrete for maximum adjustability after pour. Specifications: Minimum Depth of Pour: 3.65" (92.7) Material: Cast Iron Before Pour Adjustability: 1.25" (31.8)