Mulberry 40635 Energy-Saving I...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$0.41
Mulberry 40635 Energy-Saving Insulating Gasket for 1-Gang GFI Receptacles

Mulberry 40635 Energy-Saving Insulating Gasket for 1-Gang GFI Receptacles

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Model: 40635

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

$0.41
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Mulberry 40635 Energy-Saving Insulating Gasket for 1-Gang GFI Receptacles

The Mulberry 40635 is an energy-saving insulating gasket engineered for use with 1-gang GFI receptacles. Installed behind the wallplate and around the receptacle opening, this gasket helps create a tighter seal at the outlet box to reduce drafts and air infiltration around the device. Its slim, insulating profile is sized specifically for 1-gang GFI receptacle configurations, making it a simple addition for both new installations and retrofit projects. Backed by the Mulberry name, the 40635 gasket is a practical, low-cost accessory for improving comfort and energy efficiency around electrical outlets in residential and commercial spaces.

Key Features

  • Energy-Saving Design: Helps minimize air infiltration and heat loss around the receptacle opening, supporting a more energy-efficient wall assembly.
  • Insulating Gasket Material: Provides an insulating barrier between the wallplate, receptacle, and outlet box to help block drafts at the device location.
  • 1-Gang Configuration: Sized to fit standard 1-gang electrical boxes and wallplates for a proper, consistent fit.
  • GFI Receptacle Compatibility: Purpose-built for use with 1-gang GFI (ground-fault interrupter) receptacles.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • 1-Gang GFI Receptacle Installations
  • Residential and Commercial Electrical Wiring
  • Wallplate and Outlet Box Insulation
  • Energy-Efficient New Construction and Retrofit Projects

Why Mulberry?

Mulberry offers a range of practical electrical accessories designed to solve everyday installation challenges, and the 40635 insulating gasket is a straightforward example. Purpose-built for 1-gang GFI receptacles, it delivers a simple, energy-conscious detail that electrical professionals and contractors can add to a job with confidence. Choose Mulberry for uncomplicated, purpose-built components designed to help complete the installation efficiently.

Manufacturer Resources

Mulberry Full Line Catalog

Product Specs

Department:
Electrical
Product Group:
Boxes & Enclosures
Product Type:
Insulating Gasket
Product Subgroup:
Enclosure Accessories

Mulberry 40635 – Frequently Asked Questions

1) Will the Mulberry 40635 gasket fit a standard GFCI outlet in a single-gang box?
Yes. The 40635 is cut for a 1-gang GFI receptacle opening, so it matches the larger rectangular face of a GFCI device rather than the two round openings of a duplex receptacle. It sits in a standard 1-gang box behind the wallplate. If the device is a standard duplex outlet or a switch, this cut-out will not line up and you need the gasket made for that configuration.
2) Where does the insulating gasket actually go during installation?
It goes between the outlet box and the wallplate, wrapping the receptacle opening. Pull the plate, lay the gasket over the device, then reinstall the plate over it. No other hardware is needed, and it works the same on a new rough-in or a retrofit on an existing box.
3) Do foam outlet gaskets like the Mulberry 40635 really cut drafts, or is it just the plate?
The gasket's job is the gap the plate alone leaves. A wallplate screwed to a device does not seal against the wall surface, so air moves from the stud cavity through the box and around the device. The 40635 puts an insulating barrier across that path at the plate line, reducing air infiltration and heat loss at the outlet. It is a sealing accessory, not an electrical component, so it does not change how the GFCI functions.
4) Can I use these gaskets on exterior-wall outlets throughout an apartment building?
That is the normal use. Exterior-wall and garage-wall boxes are where infiltration shows up, and GFCI devices in kitchens, baths and garages are common there. The 40635 covers the 1-gang GFI openings in that mix; keep a duplex-cut gasket on hand for the rest of the devices so every box on the wall gets sealed. Specified for both residential and commercial work.
5) What is the Mulberry part number for the GFI version of the energy-saving gasket?
Order Mulberry 40635 for the 1-gang GFI receptacle gasket. That is the manufacturer part number and the only configuration this item covers, so when you are stocking a van or a facility store room, the GFCI cut-out and the duplex cut-out are separate numbers.
How fast can I get the Mulberry 40635 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 40635 come with a warranty?
Absolutely. The Mulberry 40635 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 40635?
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 40635 from ZenSupply?
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