B-Line Eaton series Type 3/3R junction boxes, 16" height, 6" length, 16" width, 3R, Screw cover, RTSC enclosure, Surface mounted, Small single door,

Yes. The Eaton B-Line 16166 RTSC is a NEMA Type 3R enclosure, so it is built for outdoor use where falling rain, sleet and external ice formation are the concern. It carries a rain hood over the cover and plated screws to handle the weather. A 3R box is not rated for washdown or hose-directed water, so for a pressure-wash area you want a 4 or 4X instead.

The box measures 16 inches high by 16 inches wide with a 6 inch depth, and it is surface mounted, so you are not cutting an opening at all. It bolts flat to the wall or structure through embossed thru holes in the back. Allow the full 6 inches of projection off the wall surface plus clearance to swing the cover.

There are 7 knockouts, all on the bottom of the box. That is deliberate on a 3R enclosure, keeping penetrations out of the top and sides where water would run in. If your conduit is coming down from above, you will need to route it down and enter from below, or use a listed raintight fitting in a field-drilled hole to keep the 3R rating intact.

Screw cover. The RTSC is a flanged screw cover with plated screws, not a hinged door, so the cover comes fully off when you open it. For a pull box or a splice point that is rarely accessed, that is fine. If technicians will be in the box regularly, a hinged door enclosure is the easier choice since the cover stays attached.

The 16166 RTSC is built to UL 50, the standard covering enclosures for electrical equipment. That, with the NEMA 3R rating, is what an inspector will look for on an outdoor pull or junction box.

Carbon steel at 16 gauge, painted ANSI 61 grey. That is the standard gray finish you see across industrial gear, so it matches panelboards and disconnects already on the wall. Steel painted for outdoor service handles general weather exposure; in coastal or chemical environments where corrosion is the real issue, stainless or a non-metallic enclosure is the better call.

It weighs 15.2 lb empty, so a single installer can hold it up and mark the holes. Fasten through all the embossed thru holes into solid backing or strut, and remember the finished load includes conduit and conductors landing in the bottom knockouts.