The Evolution#8482; Series Four/Five Gang On-Grade Floor Box is designed to be installed in both on-grade and above grade concrete floor applications. Box has an epoxy coating that allows the box to be placed in on-grade applications without the need for additional vapor barriers. The box has a fully finished interior to assist plugging and unplugging of devices, and comes complete with all components needed for initial installation. Designed to work with standard size wall plates for four gangs of capacity, or proprietary plates for a full five gangs of capacity. Custom options are available upon request.