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Reddit mentions of Arlington CP3540-1C Ceiling Box Cover Plate for 3-1/2" & 4" Boxes, Paintable
Sentiment score: 1
Reddit mentions: 5
We found 5 Reddit mentions of Arlington CP3540-1C Ceiling Box Cover Plate for 3-1/2" & 4" Boxes, Paintable. Here are the top ones.
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Deeper cover works with pan boxes without the need to cut the postComes ready to install with provided #8 screws or back out existing screws to accept notched bracketBracket has two separate cover mounting options: threaded post pushes in, for flat ceilings, or screws on for textured/uneven ceilingsAttractive cover plate - After installation, screws don't show on the ceilingPaintable plastic cover plate eliminates the scratches you get with painted metal covers, also covers poorly cut drywall
Specs:
| Color | White |
| Height | 5.5 Inches |
| Length | 1 Inches |
| Number of items | 1 |
| Size | 1 Pack |
| Weight | 0.15 Pounds |
| Width | 5.5 Inches |
Well in this picture, it is a wiremold round box with a round blank coverplate on it.
With the previous photo I was pretty sure I was looking at a blanking cover, now I'm certain.
I work in a facility where similar installations occur in every location where there used to be an emergency light, before a LED retrofit integrated emergency lighting into a subset of the standard luminaires. I've also seen it when alarm systems have been upgraded, that all of the previous sounder/beacon locations that were superceded by the new system get blank covers.
It's probably a coverplate for a ceiling box. Here is a similar one on Amazon.
Either there used to be a fixture there or there is a box fitted for future upgrades.
Most likely a ceiling cover.
Something like this.
They are usually used to cover ceiling holes from which you hang ceiling fans/lamps/chandeliers (any ceiling-mounted equipment that requires an electric connection).
Considering the number and symmetry that you described, they likely replaced sets of recessed lighting in the living room and fans in the other rooms.
> What's the purpose of the white plastic bar?
It's the bracket that holds on the plastic trim cover like this.
Since you're installing a fan just take it out.
Typically a j-box cover plate that can be placed over a no-longer-used electric light location.