B-Line Eaton series wiring trough, 10" height, 120" length, 10" width, GRT NK wiring trough, Embossed thru holes, No knockouts, Screw cover, 3R, Stee

It's built to NEMA 3R, so it's rated for outdoor use against falling rain and sleet. The steel body is finished in ANSI 61 gray and the cover seals down with plated screws rather than a hinge or latch, which is what keeps water out of the wireway on an exterior wall or rooftop run. It is not a washdown or hosedown enclosure; for direct spray or dust ingress you want a 4 or 12 rated wireway instead.

No. The NK in 1010120 GRT NK means no knockouts, so every side and end comes solid. You drill or punch your own conduit entries wherever the run needs them. If you want factory knockouts on a standard pattern, order a knockout version instead, because nothing can be added back to this body without field work.

The cover is a screw cover held by plated screws, so it lifts completely off the body once the screws are out, giving full open access down the whole 120 inch length for laying in conductors. Mounting is through embossed thru holes in the back of the trough, meaning you fasten directly to the wall or strut with your own hardware. Fasteners for mounting are not part of the trough.

Order Eaton B-Line part 1010120 GRT NK. The number reads as its own spec sheet: 10 inch height, 10 inch width, 120 inch length, GRT screw cover trough, NK for no knockouts. If a drawing calls for knockouts or a different cross section, the number changes accordingly, so match the digits before releasing the order.

A screw cover trough like the 1010120 GRT NK is the right pick where the cover comes off once at install and rarely again, and where you want a 3R rated closure on an outdoor or damp location run. Hinged cover wireway is the better choice inside a control room or anywhere you open the raceway regularly for changes, since you are not chasing loose screws each time. For a 10 x 10 feeder gutter run outdoors, screw cover is the conventional answer.