Description
The McDonnell & Miller 42S-HD is a replacement head assembly for Series 42S low water cut-off/pump controls.
- Model: 42S-HD
- Head mechanism only
- Automatic reset configuration
- Snap-action switch mechanism
Our combustion & controls team is ready to help
The McDonnell & Miller 42S-HD is a replacement head assembly for Series 42S low water cut-off/pump controls.
For emergencies, outside of business hours, call #901-604-7069