B-Line Eaton series wireway elbow fitting, Lay-in, 90° elbow, combo opening, 1, Steel, ANSI 61 gray painted finish, 10" X 10"

No. It carries a NEMA Type 1 degree of protection, which is indoor, general purpose, drip and rain protection only. For outdoor runs, washdown areas or anywhere water could hit the trough you need a Type 3R or Type 4 wireway and matching fittings instead.

A combo opening elbow is cut so the same fitting handles more than one turn orientation, which means the electrician does not have to stock separate left, right, up and down elbows to make a 90 degree change of direction in the run. On the 101045 HSLCOMBO that combo opening is paired with a lay-in cover so wire is set in place instead of fished around the corner.

Steel with an ANSI 61 gray painted finish. ANSI 61 gray is the standard shade used across most industrial wireway, panelboards and enclosures, so it matches existing B-Line trough and typical gear without a repaint. Steel also means it should be painted or touched up if the cut edges get scratched during install in a damp indoor area.

It is supplied as a lay-in fitting, meaning the hinged or removable cover side is part of how the elbow works: you open it, lay the conductors in around the turn, and close it. What is not part of the fitting is the straight wireway sections it connects to, their covers, or any conduit hubs or connectors you need where the run leaves the trough. Order those separately.

For a square corner in a 10 x 10 indoor trough, the single 90 degree lay-in elbow is the cleaner answer: one fitting, two joints, and the bend radius is built in so conductors are not forced against a sharp edge. Two 45s only make sense when the wall or structure forces an offset rather than a true right angle. If the turn also has to rise or drop rather than sweep flat, that is where the combo opening on this elbow helps, since the same body covers the different turn orientations.