Sealproof 1-Gang Weatherproof In Use Outdoor Outlet Extra De

The Verdict

The Short Version: If you’ve ever fought with a weatherproof outlet cover that won’t close over a bulky plug, this Sealproof unit is the fix. It’s a 1-gang, extra-deep, lockable in-use cover that actually accommodates what you plug into it — not just a decorative flap that gives up on real-world usage.

What You Actually Get

Out of the box: the cover assembly, a foam gasket for sealing against your wall box, and the necessary mounting screws. There’s no outlet included — this is strictly the cover, so you’ll need an existing receptacle or install one separately. The die-cast aluminum base is substantial; it doesn’t feel flimsy or hollow like cheaper plastic covers. The clear polycarbonate lid hinges smoothly and has a small tab that accepts a padlock (up to a 5/16-inch shackle) for security or code compliance.

Build Quality and Real-World Performance

The standout feature is the depth. At nearly 3 inches deep, this cover swallows wall warts, power strips, and those chunky 90-degree plugs that stick straight out. I tested it with a standard 12-gauge extension cord and a laptop adapter — both fit without forcing the lid shut. The lid seals via a continuous rubber gasket around the perimeter, and when closed, it’s genuinely weather-resistant. Rain splash, sprinkler overspray, and dusty garage environments are handled without issue.

The aluminum base is powder-coated, which matters more than most people realize. Plastic covers degrade in UV and get brittle within a couple of years. This one should outlast the outlet behind it. One buyer noted: “I’ve had cheap covers crack in a single Texas summer. This one has been on my pool house for two seasons and still looks new.”

What Buyers Consistently Praise

The recurring theme in reviews is “finally, one that fits.” Multiple purchasers mention using it for holiday lights, RV hookups, and EV chargers where standard covers forced them to leave the lid cracked open. The lockable tab also gets consistent praise — it’s not just for security; it prevents kids and pets from unplugging things.

Where It Falls Short

Honest tradeoffs: The lid closure requires deliberate pressure. The rubber gasket creates resistance, and on the first several uses, the lid can feel like it’s about to pop back open. It seats properly after a few days, but it’s not a one-finger close. Also, the clear lid, while durable, will show water spots and dust more than an opaque one — you’ll want to wipe it down occasionally if you care about appearance. Finally, this is a 1-gang unit. If you have a double outlet side-by-side, you’ll need the 2-gang version.

Who Should Buy This

• Homeowners with outdoor outlets exposed to weather — porch, patio, pool area, or garage exterior
• Anyone who plugs in heavy or bulky adapters (string lights, chargers, pressure washer cords) and is tired of covers that won’t close
• DIYers replacing cracked or yellowed plastic covers — this is a “buy once, cry once” upgrade
• Renters or landlords who want a lockable cover to control access to an exterior outlet

Skip it if you need a 2-gang cover, want a tool-free lid that flips open with one hand, or you’re on a tight budget where a $10 plastic cover would suffice for a sheltered, dry location.

FAQ

Q: Does this work with a GFCI outlet? Yes. The 1-gang cover fits standard rectangular GFCI receptacles. The extra depth is actually a benefit since GFCIs protrude further than standard outlets.

Q: Can I lock it with a standard padlock? Yes, a padlock with a shackle up to 5/16-inch diameter fits the tab. It’s great for preventing unauthorized use or keeping kids from unplugging things.

Q: Will it fit over an existing outlet without moving the box? In most cases, yes. The mount is standard 1-gang spacing. You’ll need the box to be flush or slightly recessed — the included gasket handles minor gaps between the cover and wall surface.

The Verdict

Buy it if: You need a durable, weatherproof cover that actually accommodates bulky plugs, or you’re replacing a cheap plastic one that’s cracked or yellowed.

Skip it if: You need a 2-gang version, want a lid that opens with zero effort, or you’re installing it in a fully sheltered location where basic protection is enough.

Rating: 4.6/5 — It’s not flashy, but it solves a real problem with solid materials and honest engineering. The slight stiffness of the lid seal is a minor quibble on an otherwise excellent product that should last a decade or more.

Where to Buy

👉 Check Price on Amazon →

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.