Expansion Tank Therm-X-Trol Thermal 10.3 Gallon 150 Pounds per Square Inch Gauge 3/4" NPTF ST-25V Non-ASME for Closed Potable Water Systems to Control Pressure Build-up

Product Overview

Amtrol invented the thermal expansion tank to absorb expanded water in closed, hot water systems and protect the water heater. Since the beginning, we've kept the pressure on our competitors with features they just can't match
like our patented Turbulator, antimicrobial liner, patent-pending InSight service indicator cap and 50 psig precharge. When your water heater is on the line, we deliver.

• Antimicrobial liner neutralizes bacteria on contact
• Patented Turbulator water circulation device
• InSight indicator cap tank service alert
• Strongest tank design featuring deep drawn steel and multi-dome construction
• Thickest diaphragm - heavy duty butyl
• Projection welded air stem to help eliminate leaks
• Exclusive ST-1 for tankless water heaters

Commonly Purchased with This Item     
denotes installation item.

Copper Fittings 34CMA Adapter 3/4 Inch Copper x Male NPT Wrot Copper 604

$6.79 / ea

Copper Fittings 3490 Elbow 90 Degree 3/4 Inch Copper x Copper Wrot Copper 607

$4.34 / ea

Copper Fittings 190 Elbow 90 Degree 1 Inch Copper x Copper Wrot Copper 607

$10.64 / ea

Copper Fittings 11290 Elbow 90 Degree 1-1/2 Inch Copper x Copper Wrot Copper 607

$24.57 / ea

Copper Fittings 1CMA Adapter 1 Inch Copper x Male NPT Wrot Copper 604

$17.34 / ea

Copper Fittings 112CMA Adapter 1-1/2 inch Copper x Male NPT Wrot Copper 604

$29.20 / ea

Copper Fittings 34CFA Adapter 3/4 Inch Copper x Female NPT Wrot Copper 603

$8.81 / ea

Watts LFN36-34 Relief Valve Vacuum 3/4 Inch MNPT Lead Free Brass 250 Degrees Fahreinheit

$38.61 / ea

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