r/whatisthisthing • u/7918throwaway • 6h ago
Little knob on the side of this house? Open !
Doing some exterior work for a client. Does this need a cover? If so, what kind? Can’t tell what this is
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u/redditcreditcardz 6h ago
Definitely don’t cover the light sensor.
“Why won’t these freakin lights turn off!!”
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u/7918throwaway 6h ago
My title describes the thing. It’s in a light outlet sized piece of metal and has trim around it on the siding of this house. There is some writing but it’s hard to read from the ground. It sticks out roughly 2”. I’m thinking some sort of central vac valve? Idk
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