Bridgeport
247-DC 3 Zinc Diecast Set Screw Coupling
Set Screw Type Ball Burnished Mirror Smooth Die-Cast Zinc Material 4.5 Inch 3.89 Inch Diameter 3 Inch Trade Size Concrete Tight
Used to join two lengths of EMT. 1/2 through 1 1/4 Concrete-tight, 1 1/2 thru 4 concrete-tight when taped. 2 thru 4 suitable for use with aluminum or steel EMT.