Bridgeport Fittings 291-RT Mig...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$9.50
Bridgeport Fittings 291-RT Mighty-Merge® EMT to IMC/Rigid Transition Coupling, 3/4" to 3/4", Die Cast Zinc, Raintight

Bridgeport Fittings 291-RT Mighty-Merge® EMT to IMC/Rigid Transition Coupling, 3/4" to 3/4", Die Cast Zinc, Raintight

(No reviews yet) Write a Review

Model: 291-RT

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

$9.50
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Bridgeport Fittings 291-RT Mighty-Merge® EMT to IMC/Rigid Transition Coupling, 3/4" to 3/4", Die Cast Zinc, Raintight

The Bridgeport Fittings 291-RT is a Mighty-Merge® transition coupling engineered to join 3/4" EMT conduit to 3/4" IMC or rigid conduit in a single die cast zinc fitting. Designed to eliminate the need for multiple adapters, this combination coupling delivers a raintight connection for demanding electrical raceway systems. Electricians rely on the 291-RT to simplify transitions between dissimilar conduit types while maintaining a weather-resistant seal at 3/4" to 3/4".

Key Features

  • Trade Size: 3/4" to 3/4", sized to transition between matching-diameter EMT and IMC/rigid conduit runs.
  • Durable Construction: Die cast zinc body resists corrosion and provides long-lasting mechanical strength for demanding job-site conditions.
  • Transition Design: Combines EMT-to-IMC/Rigid connection in one Mighty-Merge® fitting, removing the need for separate couplings or adapters when conduit types change mid-run.
  • Raintight Performance: Rated raintight, making the 291-RT suitable for outdoor and wet-location conduit installations where a secure, weather-resistant joint is required.
  • Simplified Installation: Combination coupling design speeds up transitions between conduit types on both new construction and retrofit electrical projects.

Certifications & Compliance

  • Raintight Rated

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Transitioning Between EMT and Rigid/IMC Conduit Runs
  • Outdoor and Wet-Location Conduit Installations
  • Commercial and Industrial Electrical Installations
  • Conduit and Raceway Systems
  • Renovation and New Construction Electrical Work

Why Bridgeport Fittings?

Bridgeport Fittings' Mighty-Merge® combination couplings are built with die cast zinc construction to deliver durable, raintight connections wherever conduit systems transition between EMT and IMC or rigid types. The 291-RT's 3/4" to 3/4" sizing and weather-resistant design make it a dependable choice for professionals who need reliable, code-compliant electrical installations both indoors and out.

Manufacturer Resources

Product Specs

list_batch:
BPF-20260918
Product Type:
Conduit Coupling
Series:
Mighty-Merge®
Department:
Electrical
Product Subgroup:
Conduit Fittings
Product Material:
Die Cast Zinc
Product Size:
3/4"
Product Group:
Conduit & Raceway

Bridgeport Fittings 291-RT – Frequently Asked Questions

1) Can I use the Bridgeport 291-RT to join 3/4 inch EMT directly to 3/4 inch rigid conduit?
That is exactly what it does. The Mighty-Merge 291-RT is a transition coupling with an EMT end and an IMC/rigid end, both 3/4 inch trade size, so a run that changes conduit type mid-span is joined in one fitting instead of stacking a coupling and an adapter. Threaded rigid or IMC goes on one side, unthreaded EMT on the other.
2) Is the 291-RT coupling approved for outdoor or wet location conduit?
The 291-RT is rated raintight, so it is used on outdoor and wet-location raceway where the joint has to shed water. The die cast zinc body also resists corrosion in exposed conditions. Raintight is the only rating stated for the fitting.
3) Does the 291-RT reduce between conduit sizes, like 3/4 inch EMT to 1/2 inch rigid?
No. It is a 3/4 inch to 3/4 inch coupling, so both conduit types have to be the same trade size. For a change in trade size you need a reducing fitting or a reducing bushing in addition, not this coupling.
4) What material is the Bridgeport 291-RT transition coupling made of, and will it hold up outdoors?
Die cast zinc throughout. Zinc gives the mechanical strength for the threaded rigid/IMC side and resists corrosion on exposed runs, which is why it is paired with the raintight design for wet locations.
5) Which side of the Mighty-Merge 291-RT takes threaded conduit?
The IMC/rigid side. Rigid metal conduit and IMC are threaded, so that end makes up on the pipe threads, while the EMT end is a compression-style raintight connection on unthreaded tubing. Plan your cut so the threaded pipe reaches the coupling.
6) I need the exact part number for a 3/4 inch raintight EMT to rigid coupling from Bridgeport.
Order Bridgeport Fittings 291-RT. It is the Mighty-Merge 3/4 inch to 3/4 inch EMT to IMC/rigid transition coupling in die cast zinc, raintight rated. The MPN and the catalog number are the same: 291-RT.
7) Can I use this coupling on a retrofit where existing rigid conduit has to pick up a new EMT run?
Yes, that is a common use for it. The 291-RT lands on existing threaded 3/4 inch rigid or IMC and continues in 3/4 inch EMT without a second adapter, which is why it shows up on renovation work as well as new construction.
8) Do I still need a separate adapter or bushing when using the 291-RT?
No additional coupling or adapter is needed for the conduit-type change itself. The transition is built into the one fitting, which is the point of the Mighty-Merge design. Straps, supports and any reducing hardware for a different trade size are separate.
How fast can I get the Bridgeport Fittings 291-RT 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 Bridgeport Fittings 291-RT come with a warranty?
Absolutely. The Bridgeport Fittings 291-RT 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 Bridgeport Fittings 291-RT?
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 Bridgeport Fittings 291-RT from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!