B-Line Eaton series wiring tro...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,121.23
B-Line Eaton series wiring trough, 4" height, 72" length, 4" width, GRT NK wiring trough, Embossed thru holes, No knockouts, Screw cover, 3R, Steel,

B-Line Eaton series wiring trough, 4" height, 72" length, 4" width, GRT NK wiring trough, Embossed thru holes, No knockouts, Screw cover, 3R, Steel,

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Model: 4472 GRT NK
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,121.23
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Eaton B-Line series wiring trough, 4" height, 72" length, 4" width, GRT NK wiring trough, Embossed thru holes, No knockouts, Screw cover, NEMA 3R, Steel, Plated screws, ANSI 61 gray, 16 gauge

Manufacturer Resources

Product Specs

Certifications:
CSA Certified
Closure Type:
Plated screws
Finish Color:
ANSI 61 gray
Material Thickness:
16 gauge
Mounting Method:
Embossed thru holes
Product Height:
4 in
Product Length Depth:
72 in
Product Weight:
21.432 lb
Product Width:
4 in
Special Features:
Cover is held secure by flange and plated screws
Department:
Electrical
Product Type:
GRT NK wiring trough
Product Details:
GRT NK wiring trough
Product Length:
72 in

B-LINE 4472 GRT NK – Frequently Asked Questions

1) Can the B-Line 4472 GRT NK wiring trough be used outdoors?
The Eaton B-Line 4472 GRT NK trough is rated NEMA 3R, so it is built for outdoor use against rain and falling water. The screw cover seats against a flange and is held by plated screws, which is what keeps water out of the top seam. If you need a washdown or oiltight enclosure, a 3R trough is the wrong choice.
2) Does the 4472 GRT NK trough come with knockouts, or do I have to drill my own openings?
No knockouts. The 4472 GRT NK ships as a blank 4 x 4 x 72 inch body, so every conduit entry is punched or drilled on site wherever your run lands. That is the point of the NK version: you set the hole pattern instead of working around a factory one. Budget time for punching the 16 gauge steel and deburring before you pull wire.
3) Is the 4472 GRT NK a screw cover or a hinged cover trough?
Screw cover. The full-length cover is retained by a flange and plated screws rather than a hinge or latch, which suits a pull box or gutter that gets opened rarely. If your inspection routine means opening the cover often, a hinged style saves time; for a permanent feeder gutter the screw cover holds the 3R seal better.
4) Is the Eaton B-Line 4472 GRT NK trough certified for use on a spec job?
It is CSA Certified, which covers it for Canadian installations and is commonly accepted on cross-border specs. The other spec-sheet items an inspector or engineer will look for are the NEMA 3R rating and the 16 gauge steel construction.
5) Can I join two 4472 troughs end to end for a longer run?
Each 4472 GRT NK section is 72 inches long with a 4 by 4 inch body, and multiple sections of the same size are normally coupled end to end to extend a gutter run. The end openings have to be cut or punched by the installer since this is the no-knockout version, and connectors or couplers are ordered separately.
6) What gauge steel and what finish is the B-Line 4472 GRT NK trough?
Body and cover are 16 gauge steel finished in ANSI 61 gray, the standard gray used on most switchgear and panel enclosures, so it matches adjacent gear on a wall without repainting. Hardware is plated screws.
How fast can I get the B-LINE 4472 GRT NK delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the B-LINE 4472 GRT NK come with a warranty?
Absolutely. The B-LINE 4472 GRT NK is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the B-LINE 4472 GRT NK?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the B-LINE 4472 GRT NK from ZenSupply?
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