| Model | CFM | HP | Ultimate Pressure (in HgV) |
Ultimate Pressure (Torr) |
| LR1A | 119-15303 | 10-952 | 28.9 | 24.8 |
| LR1D | 18-1038 | 1.5-7.5 | 29.0 | 23.4 |
| LR2D | 15-406 | 2-50 | 29.0 | 23.4 |
| SHR | 848-2884 | 75-225 | 29.0 | 22.5 |
Edwards Vacuum Liquid Rings
| Model | CFM | HP | Ultimate Pressure (in HgV) |
Ultimate Pressure (Torr) |
| LR1A | 119-15303 | 10-952 | 28.9 | 24.8 |
| LR1D | 18-1038 | 1.5-7.5 | 29.0 | 23.4 |
| LR2D | 15-406 | 2-50 | 29.0 | 23.4 |
| SHR | 848-2884 | 75-225 | 29.0 | 22.5 |
Edwards Vacuum Liquid Rings