The 3/4 in. Knock-Out Seals (4-Pack) are used to cover exposed knock-out holes in steel boxes and other metal enclosures. Suitable for indoor and outdoor use. The seals are made with zinc-plated steel for strength.
Covers exposed knock-out holes
Corrosion-resistant zinc-plated steel construction
A:Â No, these are not available for a 7/8 in holes.
by|Sep 22, 2023
A:Â Yes, The ones for 1/2" are made for 7/8" hole. 1/2 EMT conduit fittings fit a 7/8 hole. The trade size, 1/2, 3/4, 1, are the inside diameter of the pipe and openings for fittings are 3/8" larger than the tubing size. This is different for larger conduit sizes, but it's always larger than the trade size.
by|Sep 22, 2023
7 found this answer helpful
A:Â No, it doesn't come in 7/8 in. hole.
by|Sep 22, 2023
Q:what is the inside diameter?
by|Nov 22, 2018
2 Answers
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A:Â This fits a 3/4" diameter knock out hole.
by|Nov 26, 2018
A:Â Roughly 3/4"
by|Jan 22, 2020
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Customer Reviews
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May 16, 2023
Made for 1" hole, not 3/4" hole
As others have said, this says it's for 3/4", it's stamped with 3/4", but it's actually 1". It's crazy that this has been going on since 2019. Take a look at the other reviews.
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Nov 29, 2023
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Oct 18, 2023
Worked for what I needed. A little tough to get in, but thats the point.
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Oct 11, 2023
Wasn’t sure what size I needed and I didn’t have any in stock so about three-quarter 1 inch an inch and a quarter ended up using the 1 inch and it worked great