3/4 Emt SS Coup Steel Emt Set Screw Coupling For Connecting Emt to Emt, Concrete-Tight When Taped, Tubular Construction W/Staked Robertson Head Screws Concrete-Tight When Taped Meets Ul 514B Cul/Us Listed For Emt Only 1-1/4"-4" Furnished With (4) Set Screws