English Units
| Test Pressure (in.wg.) | Maximum Leakage Capacity (cfm)* | |||
| Cobra | Panther | Rhino | ||
| 0.1 | 680 cfm | 1400 cfm | 1700 cfm | |
| 1 | 650 cfm | 1350 cfm | 1630 cfm | |
| 2 | 645 cfm | 1320 cfm | 1550 cfm | |
| 4 | 600 cfm | 1210 cfm | 1420 cfm | |
| 6 | 465 cfm | 1065 cfm | 1330 cfm | |
| 7 | 405 cfm | 970 cfm | 1255 cfm | |
| 8 | 350 cfm | 875 cfm | 1185 cfm | |
| 9 | 250 cfm | 745 cfm | 1110 cfm | |
| 10 | — | 615 cfm | 1035 cfm | |
| 12 | — | 270 cfm | 895 cfm | |
| 14 | — | — | 660 cfm | |
| 16 | — | — | 480 cfm | |
* – Using the largest size orifice plate. Use smaller orifices for smaller flow ranges; largest orifice for maximum flow range.
Metric Units
| Test Pressure (Pa) | Maximum Leakage Capacity (L/s)* | |||
| Cobra | Panther | Rhino | ||
| 25 | 320 L/s | 660 L/s | 800 L/s | |
| 250 | 305 L/s | 635 L/s | 770 L/s | |
| 500 | 305 L/s | 625 L/s | 730 L/s | |
| 1000 | 285 L/s | 570 L/s | 670 L/s | |
| 1500 | 220 L/s | 505 L/s | 630 L/s | |
| 1750 | 190 L/s | 460 L/s | 590 L/s | |
| 2000 | 165 L/s | 415 L/s | 560 L/s | |
| 2250 | 120 L/s | 350 L/s | 525 L/s | |
| 2500 | — | 290 L/s | 490 L/s | |
| 3000 | — | 125 L/s | 420 L/s | |
| 3500 | — | — | 310 L/s | |
| 4000 | — | — | 225 L/s | |
* – Using the largest size orifice plate. Use smaller orifices for smaller flow ranges; largest orifice for maximum flow range.