Combination Unloader and Check Valve. Unloads compressor manifold any time flow stops.
| Model | Inlet | Outlet | SCFM |
| CA-12 | 1/2” tube conn. | 3/8” MPT | 3 to 12 |
| CA-24 | 3/4” tube conn | 1/2” MPT | 8 to 24 |
| PA-6 | 1/4” FPT | 1/4” MPT | 1 to 6 |
| PA-12 | 3/8” FPT | 3/8” MPT | 3 to12 |
| PA-24 | 1/2” FPT | 1/2” MPT | 8 to 24 |
| PA-48 | 3/4” FPT | 3/4” MPT | 15 to 48 |
