| ERJ2RKF4120X | 3 |
| ERJ2RKF4121X | 3 |
| ERJ2RKF4122X | 3 |
| ERJ2RKF4123X | 3 |
| ERJ2RKF41R2X | 3 |
| ERJ-2RKF4120X | 2 |
| ERJ-2RKF4121X | 2 |
| ERJ-2RKF4122X | 2 |
| ERJ-2RKF4123X | 2 |
| ERJ-2RKF41R2X | 2 |
| RKF 4-1/2-14-A/4M | 1 |
| RKF 4-1/2-14-D/2M | 1 |
| RKF 4-1/2-14/0.5M | 1 |
| RKF 4-1/2-14/10M | 1 |
| RKF 4-1/2-14/1M | 1 |
| RKF 4-1/2-14/2M | 1 |
| RKF 4-1/2-14/4M | 1 |
| RKF 4-1/2-14/5M | 1 |
| RKF 4-1/2-14/6F | 1 |
| RKF 4-1/2-14/6M | 1 |
| RKF 4-1/2-14/8M | 1 |
| RKF 4-1/4-NPT/2M | 1 |
| RKF 4/1M | 1 |
| RKF41/214/05M | 1 |