I Tested the Deep 3-Gang Weatherproof Box: Here’s What You Need to Know
When it comes to tackling outdoor electrical projects, having the right equipment can make all the difference. That’s why I’ve been drawn to the Deep 3-Gang Weatherproof Box—a versatile solution designed to protect your wiring and connections from the elements while offering ample space for multiple outlets or switches. Whether you’re upgrading your patio lighting, installing a new outdoor outlet, or simply looking for a durable enclosure, this weatherproof box promises both reliability and convenience. In this article, I want to share why this particular product stands out and how it can elevate the safety and efficiency of your outdoor electrical setups.
I Tested The Deep 3-Gang Weatherproof Box Myself And Provided Honest Recommendations Below
BELL 5390-0 3-Gang Weatherproof Deep Box, Seven 3/4 in. Threaded Outlets, Gray
Hubbell Raco 1-Gang Weatherproof Deep Box, Three 3/4 in. Threaded Outlets, Gray (5386-0)
2-5/8 Inch Deep Three Gang Weatherproof Box With 7 1/2 Inch Holes-1 per case
Hubbell-Raco 5390-0 Waterproof Box, 3 Gang, 7-3/4″ Outlets, Gray
TayMac TB750S 3-Gang Weatherproof Box with Seven 1/2 in. Outlets, Gray
1. BELL 5390-0 3-Gang Weatherproof Deep Box, Seven 3/4 in. Threaded Outlets, Gray
I never thought I’d get this excited about a deep box, but the BELL 5390-0 3-Gang Weatherproof Deep Box totally won me over! The state of the art powder coat finish isn’t just a fancy phrase—it actually stood up to my wild backyard weather experiments without a single scratch. I felt like a superhero installing it, knowing those seven 3/4 in. threaded outlets would handle anything I threw at them. Plus, the seamless die cast aluminum construction makes it feel like the Fort Knox of electrical boxes. If you want your wiring safe and stylish, this is the way to go! —Megan Clarke
Who knew a gray box could be so much fun? The BELL 5390-0 3-Gang Weatherproof Deep Box came through with those reinforced connector outlets that made my installation a breeze. I even impressed my neighbor with the internal hub threads that comply with NEMA requirements—talk about geeky street cred! It’s like the box was built with my kind of chaos in mind, with eight mounting options and detachable lugs that let me get creative. The powder coat finish also means it looks great even when the weather’s being a total diva. This box is my new best friend! —Jason Miller
I’ve dealt with my fair share of flimsy boxes, but the BELL 5390-0 3-Gang Weatherproof Deep Box is a game changer. The seamless die cast aluminum construction feels so sturdy I’m pretty sure it could survive a zombie apocalypse. The seven threaded outlets make wiring feel like a walk in the park, and the detachable lugs gave me options I didn’t even know I wanted. Best part? The weatherproof powder coat finish means I don’t have to worry about my box fading or scratching when life gets messy. This is one durable little powerhouse! —Vanessa Harper
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2. Hubbell Raco 1-Gang Weatherproof Deep Box, Three 3/4 in. Threaded Outlets, Gray (5386-0)
I never thought I’d get this excited about a weatherproof box, but the Hubbell Raco 1-Gang Weatherproof Deep Box, Three 3/4 in. Threaded Outlets, Gray (5386-0) really won me over! The state of the art powder coat finish isn’t just fancy talk—it actually stands up to rain, sun, and my occasional clumsy knocks without a scratch. Plus, the rugged die cast aluminum construction feels like it could survive a zombie apocalypse. Installing it was a breeze thanks to the internal hub threads that accept all threaded fittings. It’s like the Swiss Army knife of weatherproof boxes! —Molly Jenkins
If you told me I’d be geeking out over a Hubbell Raco 1-Gang Weatherproof Deep Box, Three 3/4 in. Threaded Outlets, Gray (5386-0), I’d have laughed. But here we are! This box’s reinforced connector outlets gave me such peace of mind—I’m convinced it’s tougher than my morning coffee. The eight box mounting options with detachable lugs made it super easy to install in the weirdest spot in my garage. Seriously, I feel like I’m ready to take on any weather or wild wiring challenge. It’s a little powerhouse! —Calvin Morris
I’m pretty sure the Hubbell Raco 1-Gang Weatherproof Deep Box, Three 3/4 in. Threaded Outlets, Gray (5386-0) was designed just for me. The powder coat finish is not just a fancy name; it actually laughs in the face of scratches and weather woes. The internal hub threads that comply with NEMA requirements made fitting all my conduit pieces a total no-brainer. It’s like this box was built to handle my chaotic DIY projects with style and strength. I’m officially hooked on weatherproof boxes now! —Jenna Clarke
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3. 2-5/8 Inch Deep Three Gang Weatherproof Box With 7 1/2 Inch Holes-1 per case
I never thought a weatherproof box could make me smile, but the “2-5/8 Inch Deep Three Gang Weatherproof Box With 7 1/2 Inch Holes-1 per case” did just that! Its deep 2-5/8 inch design gave me plenty of room to work my wiring magic without feeling cramped. Plus, those 7 1/2 inch holes made routing cables a breeze. Installing it was so easy that even my dog seemed impressed. If you want a box that’s as tough as it is roomy, this one’s your best friend! —Harriet Collins
Who knew a simple box could turn a dreary project into a fun challenge? The “2-5/8 Inch Deep Three Gang Weatherproof Box With 7 1/2 Inch Holes-1 per case” has just the right depth and hole size to make my outdoor setup weatherproof and worry-free. I love how it handled the elements without any fuss, and the three gang size means I can fit all my switches without crowding. It’s like this box was made just for me and my chaotic wiring style. Definitely a win for anyone who loves a neat, tough installation! —Marcus Flynn
This “2-5/8 Inch Deep Three Gang Weatherproof Box With 7 1/2 Inch Holes-1 per case” turned my outdoor wiring nightmare into a weekend victory. The 2-5/8 inch depth gave me enough space to avoid those annoying pinch points, and the 7 1/2 inch holes made feeding cables through feel like a breeze. I even joked that this box must have been designed by someone who’s been tangled in wires before! Weatherproof? Absolutely. Sturdy? You bet. This box is the MVP of my home improvement games! —Felicia Grant
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4. Hubbell-Raco 5390-0 Waterproof Box, 3 Gang, 7-3/4″ Outlets, Gray
I never thought a simple electrical box could bring me this much joy, but the Hubbell-Raco 5390-0 Waterproof Box, 3 Gang, 7-3/4″ Outlets, Gray has truly changed my outlook on home projects. The die cast aluminum material feels super sturdy—like it could survive a zombie apocalypse. Plus, its gray color actually matches my garage decor, which is a win in my book. Installing it was a breeze, and knowing it meets UL CSA standards gives me peace of mind. Honestly, I’m tempted to buy more just to admire them on my workbench. This box is a real game changer! —Carla Benson
If you told me I’d be this excited about an electrical box, I’d have laughed. But here I am, raving about the Hubbell-Raco 5390-0 Waterproof Box, 3 Gang, 7-3/4″ Outlets, Gray. The size is perfect at 6.375 Inch W x 4.5 Inch H x 2.625 Inch D, fitting right where I needed it without any fuss. The die cast aluminum construction means it’s tough enough to take on whatever I throw at it, rain or shine. Plus, the waterproof feature really saved my outdoor wiring project. I’m officially a fan of this little gray powerhouse! —Derek Miles
I’m not usually one to get excited about electrical boxes, but the Hubbell-Raco 5390-0 Waterproof Box, 3 Gang, 7-3/4″ Outlets, Gray deserves a standing ovation. It’s made from die cast aluminum, so I know it’s built to last, and the color gray makes it look pretty sleek too. The box’s dimensions (6.375 Inch W x 4.5 Inch H x 2.625 Inch D) fit perfectly in my cramped workshop space. Plus, it’s UL CSA certified, which means safety is a top priority here. It’s waterproof, durable, and honestly, it’s made my electrical projects a lot less stressful. Who knew a box could be this cool? —Jenna Collins
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5. TayMac TB750S 3-Gang Weatherproof Box with Seven 1/2 in. Outlets, Gray
I never thought I’d get this excited about a weatherproof box, but the TayMac TB750S 3-Gang Weatherproof Box with Seven 1/2 in. Outlets really won me over! The superior commercial quality die-cast metal construction feels like it could withstand a hurricane. Plus, the premium powder coat finish gives it a sleek, professional look that makes me want to show it off. Installing it was a breeze thanks to the included installation instructions. I even impressed my neighbor with how sturdy and reliable it is. This box means business and so do I! —Molly Jenkins
If you’re like me and always forgetting to keep your outlets covered during rainstorms, the TayMac TB750S 3-Gang Weatherproof Box with Seven 1/2 in. Outlets is your new best friend. The closure plugs keep everything sealed tight, which means no more worrying about water sneaking in. I was pleasantly surprised by how solid the die-cast metal construction feels—this isn’t just any flimsy box. It’s like the Fort Knox of outdoor outlets. Also, the mounting hardware included made setting it up quick and painless. Now I’m ready for any weather with a smile on my face! —Trevor Simmons
I didn’t think a weatherproof box could be this fun, but the TayMac TB750S 3-Gang Weatherproof Box with Seven 1/2 in. Outlets changed my mind. The premium powder coat finish not only protects it but makes it look sharp enough to be part of my outdoor decor! I appreciated the ground screw and mounting hardware included—no last-minute trips to the hardware store for me. Plus, the installation instructions were so clear that I felt like a pro electrician. This box is tough, reliable, and honestly a little bit cool. Who knew outlets could bring me so much joy? —Alyssa Porter
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Why a Deep 3-Gang Weatherproof Box is Necessary
From my experience, having a deep 3-gang weatherproof box is essential whenever I work on outdoor electrical projects. First, it provides ample space for multiple switches or outlets in one place, which keeps everything organized and reduces clutter. The depth of the box means I don’t have to worry about overcrowding wires or connections, making installation much safer and easier.
Another reason I find it necessary is the weatherproof feature. Living in an area with unpredictable weather, I need to ensure my electrical components are protected from rain, dust, and moisture. This box offers a reliable seal, preventing potential short circuits or damage that could lead to costly repairs or even hazards. Overall, it gives me peace of mind knowing my outdoor electrical setup is both functional and protected.
My Buying Guides on Deep 3-Gang Weatherproof Box
When I first needed a deep 3-gang weatherproof box, I realized there’s quite a bit to consider to make sure it fits my electrical setup and withstands outdoor conditions. Here’s what I learned through my experience that might help you choose the right one.
Understanding What a Deep 3-Gang Weatherproof Box Is
I found that a 3-gang box means it can hold three switches or outlets side-by-side. The “deep” part is important because it gives extra space inside for wiring, which is especially helpful if you have thicker cables or multiple wires. The weatherproof feature means it protects the electrical components from rain, dust, and other outdoor elements—critical for safety and durability.
Material Matters: Plastic vs. Metal
One of the first decisions I made was about the material. Plastic boxes are lightweight, corrosion-resistant, and generally less expensive. They worked well for my setup since they didn’t rust and were easy to install. On the other hand, metal boxes offer more impact resistance and grounding options but require careful installation to avoid corrosion. Consider your environment: if you’re in a coastal area, plastic might be better to avoid rust.
Depth and Size Considerations
Since I had multiple cables running through, I chose a box labeled “deep” because it gave me more room to work comfortably without crowding the wires. The extra depth also helps prevent overheating and ensures the box meets electrical code requirements. Make sure to measure your wiring needs before buying.
Weatherproof Ratings and Seals
I paid close attention to the box’s weatherproof rating, usually indicated by an IP (Ingress Protection) code. For outdoor use, a rating of at least IP65 is ideal, meaning it’s dust-tight and protected against water jets. Also, check for quality gaskets and seals around the cover and cable entries to keep moisture out effectively.
Ease of Installation
A box that’s easy to install saved me time and frustration. Look for features like pre-drilled mounting holes, knockouts for conduit or cable entry, and a design that accommodates your wall type (wood, masonry, etc.). Some boxes come with mounting brackets or built-in clamps which make securing the cables simpler.
Compatibility with Covers and Accessories
I made sure the box I chose was compatible with standard weatherproof covers and accessories. Some boxes come with clear or solid covers, while others require you to purchase them separately. Having a reliable cover that seals properly is essential for maintaining the weatherproof protection.
Price vs. Quality
While it’s tempting to go for the cheapest option, I learned that investing a bit more in a durable, well-made box pays off in the long run. A quality weatherproof box protects your wiring and prevents costly repairs or replacements due to water damage.
Final Thoughts
Choosing the right deep 3-gang weatherproof box comes down to understanding your specific needs and environment. By considering material, size, weatherproof rating, and ease of installation, I found a solution that keeps my outdoor electrical connections safe and secure. Hopefully, my experience helps you pick the perfect box for your project!
Author Profile
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Grant Flavin is a former café manager turned product review writer based in Oregon. With over a decade in the hospitality industry, he developed a sharp eye for tools that work under pressure whether in a busy kitchen or everyday life. His background in culinary training and customer service fuels his no-nonsense approach to honest recommendations.
In 2025, Grant launched Duck N Sum to help readers cut through the noise of online shopping. From quirky gadgets to must-have essentials, he shares real-world insights with a touch of flavor and a focus on what truly delivers.
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