Catalog Number 4457-DC

Mighty-Merge® Transition Fittings. 1" EMT to 4 Port AC/MC Coupling

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$62.49 Per Box of 5
Time Saver

This fitting was designed to make your job easier by saving you time.

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Set Screw type transition fitting ideal for commercial and institutional facilities. The 4457-DC is used to securely join 1" EMT to four 14/2 to 10/3 (.43" to .61" Diameter) AC/MC/MCI-A/HCF/HCFMCI-A or 3/8" flexible metal conduit. These fittings provide a huge labor savings, compared to the traditional junction box or fitting assembly installation. When using AC/MC/FMC cable simply remove the armor and expose the conductors to the desired length needed to reach the device box or enclosure. The use of anti short bushings is recommended. Tighten the steel screws for the 1" EMT conduit. Patented.

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  • Trade Size1"
  • Dimensions A3.75
  • Dimensions B1.87
  • Dimensions C2.53
  • Dimensions D1.44
Other Available Sizes
Product details
UPC Number
Primary Materials
Zinc Die Cast
Trade Size
Unit Quantity
Standard Package Quantity
Certifications & Codes
CSA File Number
C22.2 No. 18 3-04
UL Standard
Listed ETL Conforms to UL STD 514B Certified to CAN/CSA STD. C22.2 No. 18.3
Patent Number
D581,877; 7,402,752; D699,195
Compliance Documents