IMC (Intermediate Metal Conduit) coupling is factory-threaded fitting used in electrical installations to protect wiring by securely joining two IMC conduit sections end-to-end. Designed for thinner-walled IMC conduit, the coupling offers a balance of strength and lightweight construction, simplifies installation, and reduces labor and material costs.
Available size
| Trade size | Material | Thread | Ref. No. |
|---|---|---|---|
| 1/2″ | Steel | Straight tapped | C1801 (UL) |
| 3/4″ | Steel | Straight tapped | C1802 (UL) |
| 1″ | Steel | Straight tapped | C1803 (UL) |
| 1-1/4″ | Steel | Straight tapped | C1804 (UL) |
| 1-1/2″ | Steel | Straight tapped | C1805 (UL) |
| 2″ | Steel | Straight tapped | C1806 (UL) |
| 2-1/2″ | Steel | Straight tapped | C1807 (UL) |
| 3″ | Steel | Straight tapped | C1808 (UL) |
| 4″ | Steel | Straight tapped | C1809 (UL) |
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