| Image | Supplier | Item Code | Short Description |
|---|---|---|---|
| | TPI Corporation | TPI RH3 | RH3 Adjustable Automatic Reset Air Flow Differential Pressure Switch |
| | TPI Corporation | TPI RH3A | RH3A Adjustable Automatic Reset Air Flow Differential Pressure Switch |
| Differential Pressure Range | 0.05 to 12 in WC |
| Manufacturer | TPI Corporation |
