Mulberry 30381 Powder-Coated D...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1.71
Mulberry 30381 Powder-Coated Die-Cast Zinc Weatherproof Flat Round Cover with Gasket, 4"

Mulberry 30381 Powder-Coated Die-Cast Zinc Weatherproof Flat Round Cover with Gasket, 4"

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Model: 30381

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1.71
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Mulberry 30381 Powder-Coated Die-Cast Zinc Weatherproof Flat Round Cover with Gasket, 4"

Mulberry's 30381 is a weatherproof flat round cover engineered for outdoor and wet-location electrical installations. Constructed from powder-coated die-cast zinc, this 4" cover pairs a flat round profile with an integrated gasket to seal out moisture, dust, and debris. Built for durability, the 30381 delivers long-lasting protection for exposed conduit bodies, junction boxes, and other electrical enclosures where dependable weatherproof performance is required on the job site. Electricians and contractors rely on the 30381 to close out conduit bodies and enclosures with a clean, weather-tight finish that stands up to sun, rain, and everyday jobsite handling.

Key Features

  • Trade Size: 4" flat round cover sized to fit standard weatherproof enclosures and conduit bodies.
  • Durable Construction: Die-cast zinc body resists impact, warping, and corrosion for long-term outdoor performance.
  • Weatherproof Design: Flat round cover profile with an integrated gasket seals out moisture, dust, and debris intrusion.
  • Powder-Coated Finish: Powder-coated exterior adds an extra layer of corrosion resistance and a durable, long-wearing surface.
  • Gasketed Seal: Included gasket creates a tight, weatherproof fit between the cover and the enclosure body.
  • Low-Profile Cover: Flat round shape sits cleanly against the enclosure face for a neat, finished installation.

Certifications & Compliance

  • Weatherproof Rated
  • Suitable for Outdoor and Wet-Location Installations

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Outdoor and Wet-Location Electrical Installations
  • Junction Box and Conduit Body Covers
  • Weatherproof Enclosure Systems
  • Commercial and Industrial Electrical Installations
  • Renovation and New Construction Projects

Why Mulberry?

Mulberry builds the 30381 weatherproof cover from powder-coated die-cast zinc for rugged, corrosion-resistant performance in demanding outdoor environments. The gasketed, flat round design delivers a reliable weatherproof seal, making it a dependable choice for professional electrical installations where durability and moisture protection are essential. From the die-cast zinc body to the powder-coated finish and gasketed seal, every element of the 30381 is designed to hold up to repeated outdoor exposure while keeping conduit bodies and enclosures properly closed and protected.

Manufacturer Resources

Mulberry Full Line Catalog

Product Specs

Product Type:
Weatherproof Blank Cover
Product Finish:
Powder-Coated
Product Material:
Zinc
Product Size:
4"
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Weatherproof Covers

Mulberry 30381 – Frequently Asked Questions

1) Will the Mulberry 30381 round cover fit a 4 inch round weatherproof box or conduit body?
Yes, the 30381 is a 4 inch flat round cover, sized to close out standard weatherproof enclosures and conduit bodies at that size. It is the blank flat type, so it covers the opening rather than carrying a device.
2) Does the Mulberry 30381 cover come with a gasket, or do I order that separately?
The gasket is included. The 30381 ships with a gasket that seats between the cover and the enclosure face to seal out moisture, dust and debris, so you do not need to source a separate sealing ring for the joint.
3) Is the Mulberry 30381 cover rated for outdoor wet locations?
It is weatherproof rated and suitable for outdoor and wet-location electrical installations. That makes it usable on exposed conduit bodies and junction boxes on building exteriors, as long as the gasket is seated and the enclosure itself is rated for the location.
4) Can I plug a cord into an outlet behind the Mulberry 30381 cover?
No. The 30381 is a flat blank round cover, meant to close an enclosure or conduit body with a weather-tight seal, not to serve a receptacle. For a receptacle you want a cover built for a device: a self-closing cover like the Leviton 7788-CR, or for a cord left plugged in, an in-use cover such as the TayMac MX4380S Extra Duty.
5) Is the Mulberry 30381 a substitute for a 1-gang weatherproof device cover like the Leviton 7788-CR?
No. The Mulberry 30381 is a flat round weatherproof cover with a gasket, sized 4 inches, used to close out conduit bodies, junction boxes, and similar enclosures where no device is mounted. The Leviton 7788-CR is a 1-gang weatherproof self-closing cover in glass-filled thermoplastic, built for a rectangular 1-gang opening with a receptacle or similar device behind it. If there is a device in the box, the 30381 is not the part; if the opening is a round enclosure face that simply needs sealing, the 1-gang cover will not mount to it.
6) What should I use instead of the Mulberry 30381 when a cord has to stay plugged in outdoors?
The 30381 is a flat gasketed round cover that seals a closed enclosure face, so it cannot pass a cord. For an outdoor receptacle that must remain in use with a cord connected, a 1-gang in-use cover such as the TayMac MX4380S in the EXTRA DUTY series, an aluminum cover in gray, is the style built for that condition. Keep the 30381 for conduit bodies and junction boxes that only need to be closed and weather-sealed.
7) What material is the Mulberry 30381 weatherproof cover made from, and will it corrode on a coastal job?
The body is die-cast zinc with a powder-coated finish. The zinc casting resists impact and warping, and the powder coat adds a second layer of corrosion resistance over the metal, which is why it is specified for repeated outdoor exposure rather than a bare stamped cover.
8) How does the Mulberry 30381 compare on material to the Leviton and TayMac weatherproof covers?
The Mulberry 30381 is die-cast zinc with a powder-coated finish. Among comparable weatherproof covers, the Leviton 7420-YL and 7788-CR self-closing covers are glass-filled thermoplastic, and the TayMac MX4380S in-use cover is aluminum in gray. Zinc and aluminum are metal bodies; the thermoplastic covers are nonmetallic, which matters where bonding of the cover or dissimilar-metal contact with the enclosure is a consideration on the job.
9) If I need a weatherproof cover for an outdoor switch or decorator device rather than a blank round enclosure, what are the options next to the Mulberry 30381?
The 30381 is a blank flat round cover, 4 inch, with a gasket - there is no device opening in it. For a device location, the Bell Outdoor Comforts series 1-gang vertical decorator weatherproof cover is built around a decorator-style device, while the Leviton 7420-YL is an industrial grade 1-gang self-closing weatherproof cover. Choose by what is in the box: blank round enclosure face goes to the 30381, a mounted device goes to one of the 1-gang covers.
10) Will a flat round cover sit flush enough to paint or trim around on a finished wall?
The 30381 is a low-profile flat round design that sits cleanly against the enclosure face, so it finishes neater than a domed or in-use cover. If the opening is on a decorative exterior wall with a switch or receptacle behind it, a decorator-style cover such as the Bell Outdoor Comforts 1-gang vertical cover is the device-serving option instead.
11) Between the two Leviton self-closing covers, is either closer to the Mulberry 30381 for a wet-location enclosure?
Neither is a direct match. The Leviton 7420-YL and the 7788-CR are both industrial grade 1-gang self-closing weatherproof covers in glass-filled thermoplastic, so they differ from each other mainly in catalog model rather than in style, and both are spring-closing device covers. The Mulberry 30381 is a flat round gasketed zinc cover that seals an enclosure face with no moving lid. For closing out a round conduit body or junction box in a wet location, the 30381 is the form that fits.
How fast can I get the Mulberry 30381 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Mulberry 30381 come with a warranty?
Absolutely. The Mulberry 30381 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Mulberry 30381?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Mulberry 30381 from ZenSupply?
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