3 MALL SQZ CONN INS - MALL SQUEEZE CONN W/INS THROAT FOR CONNECTING FLEX CONDUIT TO BOX CONNECTS FLEXIBLE METAL CONDUIT TO BOX OR ENCLOSURE MALLEABLE IRON, ZINC PLATED MEETS UL514B FEDERAL SPEC W F 406E, NEMA FB-1 MALE HUB THREADS - NPSM STRAIGHT CONNECTOR