| Type | 2-Circuit |
| Image | Supplier | Item Code | Short Description |
|---|---|---|---|
| | Watts Regulator Company | WAT 81005865 | HydroNexZPumpZone2 81005865 |
| | Watts Regulator Company | WAT 81005872 | HydroNexZPumpZone2A 81005872 |
| | Watts Regulator Company | WAT 81005879 | HydroNex ZMixPumpZone2 81005879 |
| | Watts Regulator Company | WAT 81005858 | HydroNexZZone2A 81005858 |
| | Watts Regulator Company | WAT 81005851 | HydroNex ZZone2 81005851 |
| | Watts Regulator Company | WAT 81005885 | HydroNexZMixPumpZone2A 81005885 |
