How does this attach to the wall box I already have?

It doesn't attach to a wall box; it attaches to a weatherproof outlet box. The extension comes with screws and a gasket. The extension aligns perfectly.

Does the seal that comes with this extender box fit good? I bought a competitors extender box. The seal was basically unusable because it did not fit.

The seal fits fine, but I've gotten into the habit of adding some silicone to both sides to make the seal more permanent and ensure no water gets in.

Yes you will need longer screws. Note; the more gaskets you need to seal the additional seems the more chances of moisture finding it's way into the outlet box.

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Sigma Electric, Gray Count (Pack of 1) Sigma Engineered Solutions, 14223 1-Gang Extension Ring

Product ID: 19100712

Details

Brand
Sigma
Color
Gray
Material
Metal
Connector Type
Plug-in
Plug Format
Type A or Type

📏9.5 cu. in. capacity

🔩Includes gasket & 4 corrosion-resistant screws

🛡️UL & CSA listed, NEMA 3R rated for wet locations

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Description

🛠️ Weatherproof your workspace with confidence and style!

SEAMLESS INSTALLATION - Comes with gasket and four precision screws for a secure, watertight fit.
VERSATILE ORIENTATION - Mount vertically or horizontally to fit your unique project needs effortlessly.
BUILT TO BRAVE THE ELEMENTS - Die-cast metal with powder coating ensures ultimate corrosion resistance.
EXPAND YOUR WEATHERPROOF SETUP - Boost your one-gang box capacity with a sleek 9.5 cu. in. extension ring.
CERTIFIED FOR SAFETY DURABILITY - UL and CSA listings plus NEMA 3R rating guarantee reliable performance in wet environments.

The Sigma Engineered Solutions 14223 1-Gang Weatherproof Extension Ring offers a robust 9.5 cu. in. capacity increase for one-gang weatherproof boxes. Crafted from die-cast metal with a powder-coated finish, it resists corrosion and moisture penetration. Included gasket and screws ensure a secure, watertight installation. UL and CSA listed with a NEMA 3R rating, this extension ring is engineered for reliable use in wet, damp, or dry locations, supporting both vertical and horizontal mounting.

Specifications

Specification Met	NEMA
UPC	031857142230
Manufacturer	Sigma Electric
Global Trade Identification Number	00031857142230
Part Number	14223
Item Weight	3.2 ounces
Item model number	14223
Is Discontinued By Manufacturer	No
Size	1 Count (Pack of 1)
Style	Compact
Finish	Powder Coated
Thickness	N/A Inches
Installation Method	Screw-In
Item Package Quantity	1
Cutting Diameter	4.5 Inches
Included Components	Sigma Engineered Solutions, Gray Sigma Electric
Batteries Required?	No
Warranty Description	Warranty
Assembled Diameter	4.5 Inches

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11308CFA

Duties & taxes included

In stock

Sold byAmazon Cote D' IvoireDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cote D' Ivoire.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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