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THERM-X-TROL ST-12 Expansion Tank
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$84.87 each
In Stock
Get 451 Fri, Dec 1
More Available
Order by 4PM, receive Friday
MANUALS (5)
This item replaces: EX3, 140N738
Free Shipping On orders over $99
Easy Returns No restocking fee for 90 days
Product Highlights
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4.4 Gallons
3/4" Connection
5 Year Warranty
150 PSI
11" Diameter
15.5" Height
Description
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Amtrol ST-12 (Therm-X-Trol) is a water heater expansion tank, designed for use in domestic hot water heating systems to eliminate the potential hazards of water expansion. Water heater expansion tank is commonly installed in a domestic hot water system that contains a backflow preventer, a check valve or a pressure reducing valve.
The HydroClaw Expansion Tank Support Bracket provides a safe and reliable option if you prefer to mount your expansion tank. This expansion tank bracket is easy to install and will hold any tank with a diameter of 11" nominal.
Amtrol ST-12 Advantages:
The HydroClaw Expansion Tank Support Bracket provides a safe and reliable option if you prefer to mount your expansion tank. This expansion tank bracket is easy to install and will hold any tank with a diameter of 11" nominal.
Amtrol ST-12 Advantages:
- Eliminates the waste of energy and water, thus saving money
- Protects the water heater and plumbing fixtures from premauture failure
- Reduces potential safety hazards associated with thermal expansion
- Prevents a dangerous pressure build-up in the system
- Prevents the relief valve from going off
- Therm-X-Trol brand is the #1 choice of Professional Installers
Specs
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| Tank Volume: | 4.4 Gallons |
|---|---|
| Connection Size: | 3/4" |
| Max Accept. Factor: | 0.73 |
| Diameter (Inches): | 11" |
| Height (Inches): | 15.5" |
| Material: | Steel |
| Application: | Plumbing |
| Max Pressure (PSI): | 150 |
| Weight (lbs): | 9 lbs |
| Warranty: | 5 Year |
| Temperature Range (F): | 200°F MAX |
Questions?
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Call or text 888-757-4774
Monday – Thursday
8am–7:45pm
Friday
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Saturday – Sunday
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Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Shipping PolicyEasy Returns
Returning items is as simple as 1-2-3
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
Return Policy