| Collar and Couplings Part Number | Description |
| RC-50-K | 1/2 Solid Set Coupling Black Oxide with Keyway |
| RC-62-K | 5/8 Solid Set Coupling Black Oxide with Keyway |
| RC-75-K | 3/4 Solid Set Coupling Black Oxide with Keyway |
| RC-87-K | 7/8 Solid Set Coupling Black Oxide with Keyway |
| RC-100-K | 1 Solid Set Coulpings Black Oxide with Keyway |
| RC-125-K | 1 1/4 Solid Set Coupling Black Oxide with Keyway |
| RC-137-K | 1 3/8 Solid Set Coupling Black Oxide with Keyway |
| RC-150-K | 1 1/2 Solid Set Coupling Black Oxide with Keyway |
