| Collar and Couplings Part Number | Description |
| RC-25 | 1/4 Solid Set Coupling Black Oxide No Keyway |
| RC-31 | 5/16 Solid Set Coupling Black Oxide No Keyway |
| RC-37 | 3/8 Solid Set Coupling Black Oxide No Keyway |
| RC-50 | 1/2 Solid Set Coupling Black Oxide No Keyway |
| RC-62 | 5/8 Solid Set Coupling Black Oxide No Keyway |
| RC-75 | 3/4 Solid Set Coupling Black Oxide No Keyway |
| RC-87 | 7/8 Solid Set Coupling Black Oxide No Keyway |
| RC-100 | 1 Solid Set Coupling Black Oxide No Keyway |
| RC-125 | 1 1/4 Solid Set Coupling Black Oxide No Keyway |
| RC-137 | 1 3/8 Solid Set Coupling Black Oxide No Keyway |
| RC-150 | 1 1/2 Solid Set Coupling Black Oxide No Keyway |
