| Skid Mounted, With Built-In Compressor |
| HCNG-100 (5) |
| HCNG-200 (5) |
| HCNG-250 (5) |
| HCNG-300 (5) |
| HCNG-100D (5) |
| HCNG-200D (5) |
| HCNG-250D (5) |
| HCNG-300D (5) |
| HCNG-100X (2)(5) |
| HCNG-200X (2)(5) |
| HCNG-250X (2)(5) |
| HCNG-300 X (2)(5) |
| HCNG-400X (2)(5) |
| HPN-20FP (2)(3)(5) |
| Generators Requiring Separate Air Compressor |
| HCNG-500X (2) |
| HCNG-600X (2) |