Legrand-exterior-floor-box, the single service 2-gang outdoor ground box is made from a uv rated nonmetallic material and has been designed to withstand the harsh outdoor environments. the box can accept up to (2) 1 1/4" trade size pvc conduit feeds. boxes are designed to be installed separately or ganged together, for greater capacity and flexibility.. Floor boxes that can be used in multiple floor types and surfaces. 6, 8 and 10-gang solutions for large-capacity power, audio/video and communications., grainger supplies you with weatherproof electrical covers for receptacles and boxes. each is designed to prevent the infiltration of elements like water and rain into your sockets.