Top 10 Best outside electrical box waterproof in 2026

Last Updated - 6/12/2026

🏆Best Choice

Intermatic

Intermatic WP3100C Weatherproof Electrical Outlet Cover - Extreme Temperature Resistance, Heavy-Duty Construction, Versatile Design & Multi-Configurable, Easy Install, Secure Fit for Outdoor in-Use

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•WEATHERPROOF - Meets UL Type 3R outdoor enclosure standards and complies with 2020 NEC Article 314.15 for damp and wet locations, making it a reliable option for outdoor use.
•EASY INSTALLATION - Includes a 1/8" (3 mm) thick, pre-adhered neoprene gasket with slits for mounting screws to simplify the installation process.
•HEAVY-DUTY CONSTRUCTION - Durable UV stabilized polycarbonate cover, mounting base, and inserts to provide long-lasting protection.
•VERSATILE - Features three inserts, including GFCI, standard duplex, Round and toggle,making it a great fit for various installations, and can be mounted both vertically and horizontally.
•SECURE FIT - Features a patented insert design and single gang NEMA 3R receptacle cover to ensure a secure fit for your outdoor electrical outlet. Max cord size: (2) #14 AWG or (1) #12 AWG. Each measures: 5.75” x 4” x 2.75”

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$7.75

$8.29

-7%

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Hrensaw

Hrensaw Medium Outdoor Electrical Box(10.6x5.5x4.5inch),Weatherproof Connection Box w/6 Cable Entry,IP54 Waterproof Extension Cord Cover Protect Power Strip,Timer,Plug,Holiday Lights,Black

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•SIZE：Fits row plugs length<10". External size: 10.6” x 5.5” x 4.5”. Inner size: 9.8” x 4.7” x 3.4”, 6 cable ports, 4 snaps, 6 cable clamps, 6 rubber gaskets, Perfect for sealing 10/12/14/16 gauge cable(maximum compatibility Φ15mm cable) braided cable and flat cable.(Hand-measured, slight error)
•LUMINOUS SAFETY WARNING LABEL: the lid of the outdoor electrical box has a luminous warning label that glows at night to prevent accidentally touching it, ensuring the safety of your family and pets.
•IP54 WATERPROOF: Made of heavy-duty reinforced PP material, it is rigorously tested to IP54 waterproof, high temperature and -40℃ freezing, can withstand up to 300 lbs. and is resistant to rain, water, snow, dust, dirt.Suitable for protecting outdoor power outlets, row plugs, timers, extension cords, adapters etc.
•WIDE APPLICATIONS：Ideal for a variety of outdoor & indoor applications including patio, lawn and garden power tools,holiday lighting, landscape decorations, pool pumps, fountains, fish ponds, patio heaters, hot tub, air conditioners, security cameras and more.
•2 WAYS TO USE: 1. Can be placed horizontally on a flat surface; 2. Independent keyhole design on the back for hanging. EASY TO USE: Simply put the connecting cable into the waterproof box, secure the cable with the clip, wrap the cable tightly with rubber and close the lid.
•WATERPROOF TIPS：Place the electrical box parallel to the ground, do not place it vertically or obliquely; Do not submerge the box in water or bury it in the ground; Each package only includes 1*outdoor electrical box. The power strip, surge protector, outdoor timer, extension cord and all other device are not included.

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$19.99

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Flemoon

Flemoon Large Outdoor Electrical Box (12.5 x 8.5 x 5 inch), IP54 Waterproof Extension Cord Cover Weatherproof, Protect Outlet, Plug, Socket, Timer, Power Strip, Holiday Light Decoration, Black

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•DIMENSIONS: External size is 12.5 x 8.5 x 5 inch. Inner size is 12 x 7.4 x 3.9 inch. 6*entry ports fit up to 12AWG/3C or Φ12mm cord.
•READ BEFORE PURCHASE: Each package only includes 1*outdoor electrical box. The power strip, surge protector, outdoor timer, extension cord and all other device are not included.
•Keep outdoor cord connection secure and protected. With the 4 clips, top lid, and rubber gaskets, this outdoor extension cord cover box is IP54 waterproof. Perfect to seal 12/14/16 gauge cord, braided cable and flat wire. Features with large space, good to protect your outdoor power strip, timer outlet plug, extension cord, large adapter.
•Easy to use, place the connection into the safety seal enclosure and clip the cord with the clamps. Simple to hang the box on any walls with the dual mounting holes.
•Ideal for a wide range of outdoor & indoor applications including wooden patio, lawn and garden power tools, Christmas holiday lighting, landscape decorations, pool pumps, fountains, fish ponds, patio heaters, hot tub, air conditioners, security cameras and more.
•Waterproof Tips: Do not place more than one cable in each port; Place the electrical box parallel to the ground, but do not place it vertically or obliquely; Do not submerge the box in water or bury it.

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$23.79

$27.99

-15%

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ENERLITES

ENERLITES Extra-Duty Weatherproof Enclosure, Outdoor Outlet Cover, Outdoor Decorator/GFCI Receptacles, Dual Installation, Horizontal or Vertical Use, 1-Gang 6.1” x 3.4” x 2.8”, Clear Cover, IUC1HV-D

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Extra-Duty for use in moisture-prone locations; Polycarbonate Thermoplastic construction provides maximum durability from severe weather conditions; FOR DECORATOR/GFCI STYLE OUTLETS ONLY - RECEPTACLE SOLD SEPARATELY
•Weatherproof enclosure protects outlets from outdoor elements such as rain, mud, dirt, and snow. Also provides protection against pets and other animals
•Can be mounted either horizontally or vertically; features locking tab located at the bottom of housing and 2 openings to run electrical cords individually
•Compatible with any decorator switch, decorator receptacle, or GFCI receptacle, but ENERLITES devices should be used to achieve the best fit
•Mounting hardware included; NEMA 3R; 1-Gang; 6.1” height x 3.4” width x 2.8” depth; meets NEC section 406.9(B)(1); 1-year warranty; UL listed

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$13.99

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TayMac

TayMac MM410C Single Horizontal/Vertical Mount 1-Gang Weatherproof In-Use Electrical Outlet Cover for Home Improvement, 2.75 in, Clear

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•WEATHERPROOF COVER: Get maximum toughness and protection. Our 1-Gang Weatherproof In-Use Electrical Outlet Cover for home improvement is NEMA rated and cULus listed for wet and damp locations.
•EASY TO INSTALL: Set up your outdoor outlet cover in no time at all. Our Quick-Fit keyhole mounting system allows installation in under a minute with a EZ Change Pin for horizontal or vertical mount.
•16 CUSTOM CONFIGURATIONS: Our weatherproof outlet cover uses UFAST for 16-in-1 configuration. You can mount and protect duplex, switch, or GFCI.
•QUALITY CONSTRUCTION: Our socket cover for outlets is built from high-impact polycarbonate for maximum durability. You have more room for electrical cords and it includes gasket and mounting hardware.
•SAFE AND SECURE: Our weatherproof cover is tested and certified to cULus and NEMA standards. The lockable tab can be secured with a full-size padlock for protection against tampering.

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$12.47

$16.60

-25%

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H HUNLEE

Outdoor Extension Cord Box, Large Waterproof Electrical Cord Box (9.05x6.61x2.67inch) Cable Connection Safety Protector Cover IP54 Water-resistant for Power Strip, Holiday Light and Decorations, Black

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•✅Product Dimensions: This outdoor cable box has a large capacity, the outside of the box measures 9.05” x 6.61” x 2.67” and the inside of the box measures 8.15 ”x 5.31” x 2.36”.
•✅User-friendly Design: 9 cable entry ports of waterproof plug cover on the front and sides for different shapes of plugs and cable connections in different directions. The hanger design allows the product to be hung on any wall or an outdoor tree for ease of use.
•✅Easy to Use: Simply open the four latches, put in the connected plug or extension cables, close the outdoor cord protector and you're done! The 4 latches are removable to prevent cracking and breaking of the latches. 2 extra replaceable buckles included in the package are for replenishing the buckles in case they fall out and get lost.
•✅Indoor & Outdoor: The weatherproof electrical box is suitable for indoor and outdoor, ideal for garden power tools, Christmas holiday lighting, inflatable decorations, pool pumps, fountains, holiday blowup decorations, AC adaptor, lawn equipment, household appliances, security cameras and more.
•✅Weatherproof Connection Box: Suitable for 14/16/18 gauge cord, not recommended for use with flat cables and 45 degree angled flat plug. The outdoor junction box is made of heavy duty plastic with large compartment, fits into multiple extension cords connection, 3-head extension cord, large adapter and power strips.
•✅Do not immerse the box in water; Do not bury the box in the ground; if the latches fall off, please put them back on; To avoid breaking the seal, do not place more than one cable in each port.The rubber gasket may fall out, but it can be reinserted and used normally.

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$15.99

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Sigma Engineered Solutions

SIGMA ENGINEERED SOLUTIONS 14250 Metal Electrical Outlet Box, Weatherproof, Easy Mount Plug and Receptacle Protector, Gray, (3) 1/2-Inch Holes, 1 Gang Box

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•WEATHERPROOF PROTECTION: Enjoy the outdoors, rain or shine, with weatherproof protection for in-use plugs and outlet boxes, significantly increasing electrical safety.
•FLEXIBLE INSTALLATION OPTIONS: Easily mount this unit in a vertical or horizontal position, with (3) 1/2-in knockouts and 18.3 cu in. capacity.
•INCLUDES: Pre-installed ground screw, closure plugs, mounting lugs and (2) NO. 8-32 UNC-2A X 0.25-in self tap screws.
•RELIABLE DURABILITY: Die-cast construction and powder-coated design provide exceptional corrosion resistance, ensuring long-term reliability and performance in all-weather environments.
•SECURE INSTALL: Provide a junction for conduits or house a single wired device. Features a ground screw for electrical safety. Requires 1" screw (not included) for mounting to surface.

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$5.28

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Hrensaw

Hrensaw Large Outdoor Electrical Box Waterproof(12.5x8.5x5inch),IP54 Waterproof Outdoor Outlet Covers,Weatherproof Extension Cord Covers Protect Outlet,Plug,Timer,Power Strip,Holiday Light,Black

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Large Capacity：Effectively protects outdoor & indoor wire connections. Large size (12.5 x 8.5 x 5 inches) and 8 cable ports to protect outdoor power outlets, timers, extension cords, outlet plug, large adapters.
•Strong Sealing：With 4 snap, 8 cable clamps, 8 rubber gaskets, this outdoor extension cord cover box is IP54 waterproof. Perfect for sealing 12/14/16 gauge wire, braided cable and flat cable.
•Heavy-Duty and IP54 Waterproof：Made of heavy-duty reinforced PP material, rigorously IP54 waterproof and -40 degree Celsius freeze tested, it can withstand up to 300 lbs, and can withstand rain, water, snow, dust, dirt, etc. It continuously protects outdoor connections from electrical hazards.
•Easy Installation and Secure： simply place the connections inside the safety-sealed box and hold the cable with the clamps. The lid has glow-in-the-dark warning labels that illuminate at night to prevent accidental touching. Dual mounting holes on the bottom allow you to hang the box on any wall.
•Ideal for Various Outdoor Applications：Ideal for a variety of outdoor and indoor applications including lawn and garden power tools, Christmas holiday lighting, landscape decorations, pool pumps, fountains, cameras and more.

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$22.39

$36.99

-39%

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UltraPro

UltraPro Outdoor Outlet Cover, Single Gang Outdoor Outlet Cover Weatherproof Enclosure, Rated for Wet Locations, Outdoor Electrical Box Waterproof Plug Covers, Black, 49204

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•UL Extra-Duty Compliant – Rated for use in wet locations under National Electrical Code 406.9(B)(1)
•Protection – Clear cover constructed of impact-resistant, UV-stabilized polycarbonate protects your outlet from the elements while maintaining visibility of cords, plugs and receptacles
•Security – The built-in latch is perfect for most standard padlocks to prevent unauthorized use of your three-prong outlet
•Easy Installation – Includes gasket and mounting hardware to install the bubble cover quickly and easily
•Versatility – The in-use weatherproof outlet cover mounts horizontally or vertically on single-gang receptacles, and removable tabs are included to protect unused cord guides

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$7.74

$11.99

-35%

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TayMac

TayMac MM420C 1-Gang Nonmetallic Extra Duty Weatherproof In-Use Horizontal/Vertical 16-in-1 Standard Cover, 2.75 in, Clear

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•EXTRA DUTY RATED: Get maximum toughness and protection. Our 1-Gang Weatherproof In-Use Electrical Outlet Cover for home improvement is EXTRA DUTY rated and cULus listed for wet and damp locations.
•EASY TO INSTALL: Set up your outdoor outlet cover in no time at all. Our Quick-Fit keyhole mounting system allows installation in under a minute with an EZ Change Pin for horizontal or vertical mount.
•CUSTOM CONFIGURATIONS: Our weatherproof outlet cover uses UFAST 16-in-1 custom device configuration. You can mount and protect duplex, switch, or GFCI.
•QUALITY CONSTRUCTION: Our socket cover for outlets is built from high-impact polycarbonate for maximum durability. You have more room for electrical cords and includes gasket and mounting hardware.
•SAFE AND SECURE: Our weatherproof cover is tested and certified to cULus and NEMA standards. Lockable tab secures with a full-size padlock for protection against tampering.

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$15.25

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