Radiator connection G ½“ with O-ring, freely-rotating union nut to the valve, pipe connection male thread M 22 x 1.5 with cone.
| Code | Description |
|
|---|---|---|
| S 3746 41 | HERZ axis return valve “CD” design, chrome |
|
| S 3746 44 | HERZ axis return valve “CD” design, white |
|