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Is it suitable for wet locations?How do I mount lampholders?What tools are needed for installation?Will this fit one-gang boxes?How durable is the material?

Sigma Engineered Solutions 1 -Gang Rectangle White Metal Weatherproof Electrical Box Cover

Name: Sigma Engineered Solutions 1 -Gang Rectangle White Metal Weatherproof Electrical Box Cover
Brand: Sigma Engineered Solutions
SKU: 3345366
Price: 6.98 USD
Availability: InStock
Rating: 4.7 (11 reviews)

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4.7

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Sigma's weatherproof one-gang lampholder covers with three 1/2-in hole provides a mounting location for up to three lampholders. Their rugged, die-cast construction prevents moisture penetration and is powder coated for corrosion resistance. These covers compliment Sigma's one-gang boxes and lampholders with 1/2-in threads. They are suitable for installation in wet, damp or dry locations and include hardware and gasket.

Used to mount up to three lampholders with 1/2-in threaded knockouts
Compliments one-gang weatherproof boxes installed in wet, damp or dry locations
Features three 1/2-in threaded knockouts
Die-cast construction and powder coated for corrosion resistance
Includes gasket, closure plugs, (1) #8-32 UNC-2A X 0.31" grounding screw and (2) #6-32 UNC-2A X 0.50"
Product is cULus listed and suitable for wet locations when properly installed
Product is NEMA 3R Rated

General
Color/Finish Family	White	Shape	Rectangle
Number of Gangs	1	Material	Metal
Paintable	No

Dimensions
Width (Inches)	2.96	Depth (Inches)	1.21
Cover Height (Inches)	4.75

Features
NEMA Configuration	NEMA 3R	Weatherproof	Yes

Certifications
CA Residents: Prop 65 Warning(s)	Prop 65 WARNING(S) -	Safety Listing	UL safety listing

Warranty
Warranty	None

Miscellaneous
UNSPSC	39121300

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Review

4.7 out of 5

11 Reviews

2 Star

1 Star

100% Recommend this product

Ratings may include incentivized customer reviews.

11 Customer Reviews

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Did it's purpose.

Would Recommend

It is exactly what it is.

HappyApril 16, 2026
Verified Purchaser

Was this Review Helpful ?

Multiple knuckle cover

Would Recommend

Worked well as replacement for 1 knuckle cover

JohnOctober 10, 2025
Verified Purchaser

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/e3cb4840-b8f3-5abd-8a9c-2f03bf8f447d

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Works.

Would Recommend

Just what I needed

JohnSeptember 23, 2025
Verified Purchaser

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Sigma Engineered Solutions 1 -Gang Rectangle White Metal Weatherproof Electrical Box Cover