The Bridgeport 281SPMB 3/4" Mighty-Merge® Combination EMT To AC/MC Transition Coupling with PUSH-EMT and Snap-In is a compression type end used to connect EMT to 10/4 to 8/3 AC/MC cable. These transition Couplings have a quick install snap-in end for AC/MC cables and a labor saving push-in end for EMT. This coupling is ideal for transitioning fixture whips above the drop ceiling and for continuing a run of MC down the wall to emergency lights. Made of zinc, the body provides corrosion resistance for long-term use in most environments. The transition coupling meets all the mechanical and electrical requirements of the National Electric Code.