Black Polystyrene Egg Crate Louvers

SKU: 4722B-1x2N.300


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Black Polystyrene Egg Crate Louvers

Black Polystyrene egg crate louvers serve multiple purposes. They can be used as replacements for standard fluorescent fixture covers and they can be used for air returns and venting installations. With a cell size of 5/8" x 5/8" and at 5/16" thick, this egg crate diffuser fits perfectly in any standard ceiling grid system. It's made from highly durable polystyrene and it features a unique interlocking edge design so it can be butted together to form an almost seamless continuous joint.

For fluorescent lighting
.300" Thick (5/16”)
Square Cell Inside Dimension .575” x .575” (9/16”)
Thickness of polystyrene .063” (1/16”)

Black Polystyrene Eggcrate louver has a unique interlocking edge design so it can be butted together to form an almost seamless continuous joint. 

Actual sizes:
4722B-1x2N.300 = 11-3/4" x 23-5/8"
4722B-1x4N.300 = 11-3/4" x 47-9/16"
4722B-2x2N.300 = 23-5/8" x 23-5/8"
4722B-2x4N.300 = 23-5/8" x 47-9/16"
See all other eggcrates, click this link.

Spec Sheet

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Customer Reviews

Based on 8 reviews
Teresa Engebretson (Fairmont, US)
Black Egg Crate Tikes

We have not installed them yet but they arrived in a timely fashion.

Graham McIntosh (Vancouver, CA)

Black Polystyrene Egg Crate Louvers

Luis Manzo (Tamazula de Gordiano, MX)

Good product works perfect

John K. (South Amboy, US)
Worked great for a purpose it was not designed for.

If you are modifying your computer case for venting. This works perfect for it. My computer case had a solid front panel which was restricting the air flow. I removed the solid metal front center piece of sheet metal and replace it with the egg crate louver. It lowered the temperature in my case by 20 degrees. Which in turn allows all the major components CPU, GPU, Memory, storage to run cooler. This product is very well made. Nice and glossy black, thin and strong. I'm sure it's perfect for its intended use also. The shipping was extremely fast, I ordered it on a weekend and had it within 2 days. Carefully packaged to assure no breakage. And a perfect transaction to top it all off. PS. I am on a lot of computer modifying web sites and since I've used this, I have been sharing the link to this product so others can do the same modification to their computer cases.

Diane Rosenstiel


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