Use Bridgeport’s 252-I 1" Insulated Steel EMT Compression Connectors to make quick, concrete-tight seals between electrical metallic tubing and an electrical box or enclosure. A rugged steel construction and electroplated zinc finish ensures both durability and excellent corrosion resistance in harsh environments. An insulated throat protects inner wiring from abrasion and is rated up to a working temperature of 105°C. To install, simply insert EMT into the connector and tighten down the compression ring to secure the tubing in place. Then, fit the connector to a box knockout using the provided locknut for a concrete-tight seal. Bridgeport insulated steel EMT compression connectors are available in trade sizes 1/2" to 4". All are UL Listed under File No. E24001 and meet the stringent bonding and grounding requirements of UL 514B.