Mulberry 40671 Polyethylene Fo...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$0.41
Mulberry 40671 Polyethylene Foam Insulating Gasket for 1-Gang Toggle Switch

Mulberry 40671 Polyethylene Foam Insulating Gasket for 1-Gang Toggle Switch

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Model: MUL40671

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

$0.41
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Mulberry 40671 Polyethylene Foam Insulating Gasket for 1-Gang Toggle Switch

The Mulberry 40671 is a polyethylene foam insulating gasket engineered for use with 1-Gang toggle switches, sitting between the wall plate and the electrical box to help seal out unwanted air movement. Made from soft, resilient polyethylene foam, this energy saving gasket compresses easily against the wall surface to close small gaps around the switch opening without interfering with wall plate installation or switch operation. It is a simple, low-cost accessory that pairs with standard 1-Gang toggle switch wall plates in residential and commercial wiring applications. Electricians, contractors, and facility maintenance teams use gaskets like the Mulberry 40671 to reduce drafts, dust infiltration, and energy loss at wall-mounted switch locations, particularly on exterior walls where air leakage around switch boxes is common.

Key Features

  • Configuration: Sized and shaped for 1-Gang toggle switches, providing a precise fit behind the wall plate.
  • Durable Construction: Polyethylene foam material offers a soft, flexible, and resilient seal that conforms closely to the wall surface.
  • Insulating Gasket Design: Placed between the wall plate and electrical box to help close small gaps around the switch opening.
  • Energy Saving: Helps reduce air infiltration and drafts around the switch location, supporting improved energy efficiency in the room.
  • Low-Profile Fit: Thin foam profile sits flush behind the wall plate so the toggle switch and plate mount and operate normally.
  • Easy Installation: Fits behind standard 1-Gang toggle switch wall plates without special tools, simplifying retrofit and new-construction installs.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Single-Gang Toggle Switch Wall Plates
  • Residential and Commercial Wiring Devices
  • Energy Efficiency and Weatherization Upgrades
  • Draft-Proofing Interior and Exterior Switch Openings
  • New Construction and Electrical Renovation Projects
  • Retrofit Installations on Existing Toggle Switch Locations

Why Mulberry?

Mulberry offers practical, affordable electrical accessories like the 40671 polyethylene foam insulating gasket to help installers finish 1-Gang toggle switch installations with an added layer of draft protection. The soft foam construction makes it easy to fit behind existing wall plates, giving electricians, contractors, and property owners a straightforward way to address energy loss at switch openings. Choose Mulberry for reliable, easy-to-install accessories that support energy-conscious electrical installations across residential and commercial projects.

Manufacturer Resources

Mulberry Full Line Catalog

Product Specs

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

Mulberry MUL40671 – Frequently Asked Questions

1) Will the Mulberry 40671 foam gasket fit a standard 1-gang toggle switch plate?
Yes. The Mulberry 40671 is cut and shaped specifically for 1-gang toggle switch openings, so it lines up behind a standard single-gang toggle wall plate. It is not a decorator/rocker cutout, so if your opening is a Decora-style rectangular device, this one is the wrong shape.
2) Does a foam switch gasket make the wall plate sit proud of the wall?
No. The 40671 uses a thin, low-profile polyethylene foam that compresses against the wall surface when the plate screws are tightened, so the plate mounts flush and the toggle operates normally.
3) Can I add these gaskets to switches that are already installed, or do they only work on new construction?
Either. Pull the existing cover plate, slip the foam gasket over the switch opening, and reinstall the plate. No tools beyond the screwdriver you already have, which is why maintenance crews use them for weatherization retrofits as well as new wiring.
4) Is the Mulberry 40671 a one-gang part only, or can I use it on a two-gang plate?
One gang only. The 40671 is a single toggle cutout; for a two-gang opening you need a two-gang gasket, since doubling up single gaskets leaves the center bridge unsealed and the plate will not seat evenly.
5) Do switch gaskets actually do anything on interior walls, or only exterior walls?
The payoff is biggest on exterior walls, where air leaks through the box penetration into the wall cavity. The Mulberry 40671 seals the gap between plate and wall to cut that infiltration along with dust. On interior partition walls there is less pressure difference, so it mainly helps with dust and small drafts between rooms.
6) What is the Mulberry 40671 made of, and will it hold up long term?
Polyethylene foam, soft and resilient, so it keeps its spring and stays conformed to the wall rather than crushing flat the first time the plate is torqued down.
7) What part number do I order for a Mulberry single toggle switch insulating gasket?
Mulberry 40671. It is a single catalog number with no finish or size options to pick, so the part number is all you need to specify.
How fast can I get the Mulberry MUL40671 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 MUL40671 come with a warranty?
Absolutely. The Mulberry MUL40671 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 MUL40671?
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 MUL40671 from ZenSupply?
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