| WIRE SIZE | F | Color Code | O.D INCH. | I.D INCH. | Product Code |
| 8 | 1 – 3/4 | RED | 9/32 | 11/64 | HCTL 8 |
| 6 | 2 – 3/8 | BLUE | 19/64 | 13/64 | HCTL 6 |
| 4 | 2 – 3/8 | GREY | 11/32 | 1/4 | HCTL 4 |
| 3 | 2 – 3/8 | WHITE | 3/2 | 9/32 | HCTL 3 |
| 2 | 2 – 5/8 | BROWN | 27/64 | 5/16 | HCTL 2 |
| 1 | 2 – 7/8 | GREEN | 15/32 | 23/64 | HCTL 1 |
| 1/0 | 2 – 7/8 | PINK | 33/64 | 25/64 | HCTL 1/0 |
| 2/0 | 3 – 1/8 | BLACK | 9/16 | 7/16 | HCTL 2/0 |
| 3/0 | 3 – 1/8 | ORANGE | 39/64 | 31/64 | HCTL 3/0 |
| 4/0 | 3 – 3/8 | PURPLE | 11/16 | 35/64 | HCTL 4/0 |
| 300MCM | 4 – 1/8 | WHITE | 13/16 | 21/32 | HCTL 300 |
| 400MCM | 4 – 3/8 | BLUE | 15/16 | 3/4 | HCTL 400 |
| 500MCM | 4 – 5/8 | BROWN | 1 – 1/16 | 53/64 | HCTL 500 |
| 600MCM | 4 – 5/8 | GREEN | 1 – 3/16 | 59/64 | HCTL 600 |
