| Brand | Amtrol |
| Type | Boiler Expansion Tank |
| Capacity | 2.0 gal |
| Color | White |
| Model | ST-5 |
| MPN | 140N43 |
| Country Of Origin | United States |
The Therm X Trol Amtrol ST-5 Water Heater Expansion Tank is a 2.0 gallon boiler expansion tank designed by Amtrol in the United States.