RACO round, recessed floor box is used for residential, wood sub-floor applications. The product features a tamper-resistant 15a Duplex receptacle. The receptacle is recessed minimizing plug intrusion; allowing furniture to be located over the plug. Accessibility to make adjustments to the height after the box is mounted. Completed instructions are supplied with the product. Cubic inches (cm3): 28.0 (458.8)