| Image | Supplier | Item Code | Short Description |
|---|---|---|---|
| | Midland Metal MFG | MID 20600 | 4MM OD PUSH-IN UNION |
| | Midland Metal MFG | MID 20600N | 4MM P-I UNION CONNECTOR N-PLTD |
| | Midland Metal MFG | MID 20732N | 4MM P-I BULKHEAD UNION N-PLTD |
| Manufacturer | Midland Metal MFG |
| Fitting/Connector Type | Coupling |
| Nominal Size | 4 mm |
