| Model | Height | Number of Tracers/ Take-offs per Manifold |
| MSD-4 | 11-1/2″ (292 mm) | 4 |
| MSD-8 | 24-1/4″ (615 mm) | 8 |
| MSD-12 | 37-1/8″ (943 mm) | 12 |
| SMSD-4 | 10-1/4″ (260 mm) | 4 |
| SMSD-8 | 19-3/4″ (501 mm) | 8 |
| SMSD-12 | 29-1/4″ (743 mm) | 12 |
Armstrong MSD and SMSD Steam Distribution Manifolds place all steam supply valves in one location. Standardizing components and centralizing their location simplifies installation, reduces costs, and makes routine maintenance easier.