3/4 SS COUP STEEL 300/PAIL 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 UL514B cUL/us LISTED FOR EMT ONLY 1-1/4"-4" FURNISHED WITH (4) SET SCREWS