Extenders for Electrical Outlets

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	Shape Shape


Rectangle	Square

Round	Octagon

	System of Measurement System of Measurement

Inch

	Width Width

2 1/8"

2 3/4"

4 11/16"

	Depth Depth

1 1/2"

1 7/8"

	Height Height

4 1/2"

4 11/16"

	Material Material

Steel

Aluminum

	Industry Designation Industry Designation

1 Gang

2 Gang

	Knockout Trade Size Knockout Trade Size

1/2

3/4

	Outlet Box Component Outlet Box Component	Show

Extender

	Outlet Box Component Outlet Box Component	Hide

	Number of Knockouts Number of Knockouts

	Specifications Met Specifications Met

CSA

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Capacity Capacity

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	Finish Finish

Zinc Plated

Powder Coated

	Environment Environment

Corrosive

Damp

Outdoor

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Conduit Trade Size Conduit Trade Size

1/2

	Diameter Diameter

	Color Color

	Gray

	Number of Conduit Connections Number of Conduit Connections

	Environmental Rating Environmental Rating

NEMA 3R

	For Conduit Material For Conduit Material

50 Products

Extenders with Knockouts for Steel Outlet Boxes

Add depth to your outlet box.

For technical drawings and 3-D models, click on a part number.

Industry Designation	No. of Knockouts	Knockout Trade Size	Ht.	Wd.	Dp.	Capacity, cu. in.	Finish		Each
2 Gang	12	1/2, 3/4	4"	4"	1 1/2"	22.5	Zinc Plated	00000000	00000
2 Gang	12	1/2, 3/4	4 11/16"	4 11/16"	1 1/2"	29.5	Zinc Plated	000000000	00000

Flat Blank Covers

Industry Designation	Ht.	Wd.	Finish	Mounting Fasteners Included		Each
2 Gang	4"	4"	Zinc Plated	No	00000000	00000
2 Gang	4 11/16"	4 11/16"	Zinc Plated	No	000000000	0000

Flat Blank Covers with Knockouts

Industry Designation	No. of Knockouts	Knockout Trade Size	Ht.	Wd.	Finish	Mounting Fasteners Included		Each
2 Gang	1	1/2	4"	4"	Zinc Plated	No	00000000	00000
2 Gang	1	1/2	4 11/16"	4 11/16"	Zinc Plated	No	00000000	0000

Raised Blank Covers

Industry Designation	Ht.	Wd.	Dp.	Finish	Mounting Fasteners Included		Each
2 Gang	4 1/8"	4 1/8"	9/16"	Zinc Plated	No	000000000	00000

Covers for NEMA Outlets

For Max. No. of Devices	Industry Designation	For No. of Outlets	Ht.	Wd.	Dp.	Finish	Mounting Fasteners Included		Each
1	2 Gang	2	4 1/8"	4 1/8"	9/16"	Zinc Plated	No	00000000	00000
2	2 Gang	4	4 1/8"	4 1/8"	9/16"	Zinc Plated	No	00000000	0000

Covers for GFCI Outlets

For Max. No. of Devices	Industry Designation	For No. of Outlets	Ht.	Wd.	Dp.	Finish	Mounting Fasteners Included		Each
1	2 Gang	1	4 1/8"	4 1/8"	9/16"	Zinc Plated	No	00000000	00000
2	2 Gang	2	4 1/8"	4 1/8"	9/16"	Zinc Plated	No	000000000	0000

Covers for Toggle Switches

For Max. No. of Devices	Industry Designation	For No. of Toggle Switches	Ht.	Wd.	Dp.	Finish	Mounting Fasteners Included		Each
1	2 Gang	1	4 1/8"	4 1/8"	9/16"	Zinc Plated	Yes	00000000	00000
2	2 Gang	2	4 1/8"	4 1/8"	9/16"	Zinc Plated	Yes	00000000	0000

Covers for Circular Outlets

For Max. No. of Devices	Industry Designation	For No. of Outlets	Circular Outlet Dia.	Ht.	Wd.	Dp.	Finish	Mounting Fasteners Included		Each
1	2 Gang	1	1.4"	4 1/8"	4 1/8"	9/16"	Zinc Plated	Yes	00000000	00000
1	2 Gang	1	1.6"	4 1/8"	4 1/8"	9/16"	Zinc Plated	Yes	00000000	0000
1	2 Gang	1	1.7"	4 1/8"	4 1/8"	9/16"	Zinc Plated	Yes	00000000	0000
1	2 Gang	1	2.1"	4 1/8"	4 1/8"	9/16"	Zinc Plated	No	00000000	0000
1	2 Gang	1	2.6"	4 1/8"	4 1/8"	9/16"	Zinc Plated	Yes	00000000	0000

Covers for NEMA and GFCI Outlets

For Max. No. of Devices	Industry Designation	For No. of NEMA Outlets	For No. of GFCI Outlets	Ht.	Wd.	Dp.	Finish	Mounting Fasteners Included		Each
2	2 Gang	2	1	4 1/8"	4 1/8"	9/16"	Zinc Plated	No	00000000	00000

Covers for NEMA Outlets and Toggle Switches

For Max. No. of Devices	Industry Designation	For No. of NEMA Outlets	For No. of Toggle Switches	Ht.	Wd.	Dp.	Finish	Mounting Fasteners Included		Each
2	2 Gang	2	1	4 1/8"	4 1/8"	9/16"	Zinc Plated	Yes	00000000	00000

Covers for NEMA and Circular Outlets

For Max. No. of Devices	Industry Designation	For No. of NEMA Outlets	For No. of Circular Outlets	Circular Outlet Dia.	Ht.	Wd.	Dp.	Finish	Mounting Fasteners Included		Each
2	2 Gang	2	1	1.6"	4 1/8"	4 1/8"	9/16"	Zinc Plated	Yes	000000000	000000

Covers for NEMA Outlets, GFCI Outlets, or Toggle Switches

1/2" Dp.
For Max. No. of Devices	Industry Designation	For No. of NEMA Outlets	For No. of GFCI Outlets	For No. of Toggle Switches	Ht.	Wd.	Finish	Mounting Fasteners Included		Each
1	2 Gang	2	1	1	4"	4"	Zinc Plated	No	00000000	00000
1	2 Gang	2	1	1	4 11/16"	4 11/16"	Zinc Plated	No	00000000	0000
2	2 Gang	4	2	2	4"	4"	Zinc Plated	No	00000000	0000
2	2 Gang	4	2	2	4 11/16"	4 11/16"	Zinc Plated	No	00000000	0000
5/8" Dp.
1	2 Gang	2	1	1	4"	4"	Zinc Plated	No	00000000	0000
1	2 Gang	2	1	1	4 11/16"	4 11/16"	Zinc Plated	No	00000000	0000
2	2 Gang	4	2	2	4"	4"	Zinc Plated	No	00000000	0000
2	2 Gang	4	2	2	4 11/16"	4 11/16"	Zinc Plated	No	00000000	0000

Extenders with Knockouts for Steel Switch Boxes

Add depth to your switch box.

Industry Designation	No. of Knockouts	Knockout Trade Size	Ht.	Wd.	Dp.	Capacity, cu. in.	Finish		Each
1 Gang	8	1/2	4"	2"	1 7/8"	13	Zinc Plated	00000000	000000
1 Gang	8	1/2	4"	2 1/8"	1 1/2"	11.5	Zinc Plated	00000000	0000

Blank Covers

Industry Designation	Ht.	Wd.	Finish	Mounting Fasteners Included		Each
1 Gang	4 3/16"	2 5/16"	Zinc Plated	Yes	00000000	00000

Blank Covers with Knockouts

Industry Designation	No. of Knockouts	Knockout Trade Size	Ht.	Wd.	Finish	Mounting Fasteners Included		Each
1 Gang	1	1/2	4 3/16"	2 5/16"	Zinc Plated	Yes	00000000	00000

Covers for NEMA Outlets

For Max. No. of Devices	Industry Designation	For No. of Outlets	Ht.	Wd.	Finish	Mounting Fasteners Included		Each
1	1 Gang	2	4 3/16"	2 5/16"	Zinc Plated	Yes	00000000	00000

Covers for Toggle Switches

For Max. No. of Devices	Industry Designation	For No. of Toggle Switches	Ht.	Wd.	Finish	Mounting Fasteners Included		Each
1	1 Gang	1	4 3/16"	2 5/16"	Zinc Plated	Yes	00000000	00000

Covers for Circular Outlets

For Max. No. of Devices	Industry Designation	For No. of Outlets	Circular Outlet Dia.	Ht.	Wd.	Dp.	Finish	Mounting Fasteners Included		Each
1	1 Gang	1	1.4"	4 3/16"	2 5/16"	1/8"	Zinc Plated	Yes	000000000	00000
1	1 Gang	1	1.6"	4 3/16"	2 5/16"	1/8"	Zinc Plated	Yes	000000000	0000

Covers for GFCI Outlet

For Max. No. of Devices	Industry Designation	For Device Type	For No. of Outlets	Ht.	Wd.	Dp.	Cover Style	Finish	Mounting Fasteners Included		Each
1	1 Gang	GFCI Outlet	1	4"	2"	1/2"	Raised	Zinc Plated	Yes	00000000	00000

Extenders with Knockouts for Octagonal Steel Outlet Boxes

Add depth to your outlet box.

For technical drawings and 3-D models, click on a part number.

Industry Designation	No. of Knockouts	Knockout Trade Size	Ht.	Wd.	Dp.	Capacity, cu. in.	Finish		Each
1 Gang	4	1/2	4"	4"	1 1/2"	15.5	Zinc Plated	00000000	00000

Blank Covers

Industry Designation	Ht.	Wd.	Finish	Mounting Fasteners Included		Each
1 Gang	4"	4"	Zinc Plated	No	00000000	00000

Blank Covers with Knockouts

Industry Designation	No. of Knockouts	Knockout Trade Size	Ht.	Wd.	Finish	Mounting Fasteners Included		Each
1 Gang	1	1/2	4"	4"	Zinc Plated	No	00000000	00000

Covers for NEMA Outlets

For Max. No. of Devices	Industry Designation	For No. of Outlets	Ht.	Wd.	Finish	Mounting Fasteners Included		Each
1	1 Gang	2	4"	4"	Zinc Plated	No	00000000	00000

Extenders for Weatherproof Outlet Boxes

Add depth to your weatherproof outlet box. Exposure to rain, snow, and wet conditions won’t damage these corrosion-resistant extenders.

For technical drawings and 3-D models, click on a part number.

Industry Designation	Ht.	Wd.	Dp.	Capacity, cu. in.	Material	Mounting Fasteners Included	Environmental Rating	Specifications Met		Each
1 Gang	4 1/2"	2 3/4"	1"	9.5	Gray Powder-Coated Aluminum	Yes	NEMA 3R	UL Listed, CSA Certified	0000000	00000

Blank Covers

Industry Designation	Ht.	Wd.	Material	Mounting Fasteners Included	Environmental Rating	Specifications Met		Each
1 Gang	4 9/16"	2 13/16"	Gray Powder-Coated Steel	Yes	NEMA 3R	UL Listed	000000	00000

Covers for Conduit Connections

For Max. No. of Devices	Industry Designation	No. of Conduit Connections	Conduit Trade Size	Conduit Thread Type	Ht.	Wd.	Material	Mounting Fasteners Included	Environmental Rating	Specifications Met		Each
3	1 Gang	3	1/2	NPT	4 9/16"	2 13/16"	Gray Powder-Coated Aluminum	Yes	NEMA 3R	UL Listed	000000	00000

Covers for Toggle Switches

For Max. No. of Devices	Industry Designation	Ht.	Wd.	Material	Mounting Fasteners Included	Specifications Met		Each
1	1 Gang	4 9/16"	2 13/16"	Gray Powder-Coated Aluminum	Yes	UL Listed	0000000	00000

Weatherproof Outlet Boxes

Exposure to rain, snow, and wet conditions won't damage these corrosion-resistant boxes. They come with sealing plugs for unused connections.

For technical drawings and 3-D models, click on a part number.

Extenders

Industry Designation	Ht.	Wd.	Dp.	Capacity, cu. in.	Material	Mounting Fasteners Included	Environmental Rating	Specifications Met		Each
1 Gang	4 1/2"	2 3/4"	1"	9.5	Gray Powder-Coated Aluminum	Yes	NEMA 3R	UL Listed, CSA Certified	0000000	00000

Blank Covers

Industry Designation	Ht.	Wd.	Material	Mounting Fasteners Included	Environmental Rating	Specifications Met		Each
1 Gang	4 9/16"	2 13/16"	Gray Powder-Coated Steel	Yes	NEMA 3R	UL Listed	000000	00000

Covers for Conduit Connections

For Max. No. of Devices	Industry Designation	No. of Conduit Connections	Conduit Trade Size	Conduit Thread Type	Ht.	Wd.	Material	Mounting Fasteners Included	Environmental Rating	Specifications Met		Each
3	1 Gang	3	1/2	NPT	4 9/16"	2 13/16"	Gray Powder-Coated Aluminum	Yes	NEMA 3R	UL Listed	000000	00000

Covers for Toggle Switches

For Max. No. of Devices	Industry Designation	For No. of Toggle Switches	Ht.	Wd.	Material	Mounting Fasteners Included	Specifications Met		Each
1	1 Gang	1	4 9/16"	2 13/16"	Gray Powder-Coated Aluminum	Yes	UL Listed	0000000	00000

Extenders for Round Weatherproof Outlet Boxes

Add depth to your weatherproof outlet box. Exposure to rain, snow, and wet conditions won’t damage this corrosion-resistant extender. It comes with sealing plugs for unused connections.

For technical drawings and 3-D models, click on a part number.

No. of Conduit Connections	Conduit Trade Size	Conduit Connection Type	For Conduit Type	For Conduit Material	Dia.	Dp.	Capacity, cu. in.	Material	Mounting Fasteners Included	Environmental Rating	Specifications Met		Each
4	1/2	Threaded	IMC, RMC	Aluminum, Stainless Steel, Steel	4"	1 1/2"	16.3	Gray Powder-Coated Aluminum	Yes	NEMA 3R	UL Listed, CSA Certified	0000000	000000

Blank Covers

Dia.	Material	Mounting Fasteners Included	Environmental Rating	Specifications Met		Each
4 1/8"	Gray Powder-Coated Steel	Yes	NEMA 3R	UL Listed, CSA Certified	0000000	00000

Covers with One Conduit Connection

For Max. No. of Devices	Conduit Trade Size	Conduit Connection Type	Dia.	Material	Mounting Fasteners Included	Environmental Rating	Specifications Met		Each
1	1/2	Threaded	4 1/8"	Gray Powder-Coated Aluminum	Yes	NEMA 3R	UL Listed, CSA Certified	0000000	00000

Covers with Three Conduit Connections

For Max. No. of Devices	Conduit Trade Size	Conduit Connection Type	Dia.	Material	Mounting Fasteners Included	Environmental Rating	Specifications Met		Each
3	1/2	Threaded	4 1/8"	Gray Powder-Coated Aluminum	Yes	NEMA 3R	UL Listed, CSA Certified	000000	00000