Carlon E971FB Floor Box Base

90 cu in Round Floor Box Base E971FB-CAR by Carlon is a non-metallic PVC floor box base designed for in-floor power and data installations; its round body accepts two 3/4 in hubs and two 1 in hubs, with two reducer plugs of 1 in × 3/4 in and 3/4 in × 1/2 in included to adapt to various wiring needs. A leveling ring keeps the top flush and level during concrete pours, while the PVC construction provides durability in concrete environments. The base is UL and CSA listed and fire rated, offering a recognized safety standard, and requires a minimum concrete depth of 3-1/2 in. The unit offers about 90 cubic inches of internal capacity, with an approximate diameter of 5.03 in and a depth of about 5.40 in, making it suitable for commercial floor-outlet applications where a recessed, level surface is essential.