B-Line Eaton series wiring trough, 8" height, 24" length, 8" width, GRT wiring trough, Embossed thru holes, 7 bottom knockouts, Screw cover, 3R, Stee

Mounting is through embossed thru holes in the back of the trough, so it fastens flat to a wall, backboard or strut with your own hardware. The embossed holes keep the mounting fasteners from breaking the 3R integrity the way a plain drilled hole would. Fasteners and anchors are not part of the trough, so pick them for your substrate and for the 16.049 lb empty weight plus conductor fill.

It is an 8 x 8 x 24 inch trough: 8 inch height, 8 inch width, 24 inch length. That 8 by 8 cross section is the number that matters for fill, since the usable wiring space is the full 8 inch square less your conductors and any splices. It weighs 16.049 lb empty, which is what to size your wall anchors or strut mounting to before conductors go in.

There are 7 knockouts in the bottom of the trough, so bottom feeds are ready to go. Any entry through the sides, ends or top has to be cut or punched in the field, and on an outdoor 3R install a top opening should be avoided or properly rain tight fitted. The body is 16 gauge steel, so plan on a knockout punch rather than a hole saw for clean openings.

Screw cover, not hinged. The cover is held by a flange and plated screws, so you back the screws out to open it. For a junction point you open often, a hinged cover version is the easier choice; for a trough you close up once at the end of the rough-in, the screw cover and flange is what holds the 3R seal.

Order it as Eaton B-Line 8824 GRT. The number reads out of the size: 8 inch height, 8 inch width, 24 inch length, GRT screw cover trough. Adjacent B-Line trough catalog numbers follow the same pattern, so confirm all three digits groups match the cross section and run length you need before it ships.

16 gauge steel throughout, with plated screws securing the cover and an ANSI 61 gray finish. That gauge is heavy enough that the 8 x 8 body holds its shape when you are pulling conductors through a 24 inch run, and plated screw hardware is what you want on an outdoor 3R enclosure so the fasteners do not seize with rust.