Amtrol Therm-X-Trol ST-12V Thermal Expansion Tank. Amtrol Therm-X-Trol ST-12 is a 4.4 Gallon Thermal Expansion Tank manufactured by Amtrol. The tank recieves/accepts expanded water as system temperature rises and returns hot water to system when demand occurs. This expansion tank helps to conserve energy when hot water is required within the home. The ST-12 is an In-line model that has a small construction allowing for it to easily be installed in a small or cramped space.
Mpn # | 141N43 ST-12 |
Shipping Dimensions | 11.0" x 11.0" x 15.0" |
Weight | 9.00 lbs. |
Shipping Dimensional Weight | 10.29 lbs. |