Amtrol®

Amtrol® Therm-X-Trol® ST-12 ST Series In-Line Thermal Expansion Tank, 4.4 gal Tank, 3.2 gal Acceptance, 150 psig, ASME Yes/No: No, 11 in Dia x 15 in H

37742 MFG #: 141N43
$175.00 / ea
Amtrol® Therm-X-Trol® ST-12 ST Series In-Line Thermal Expansion Tank, 4.4 gal Tank, 3.2 gal Acceptance, 150 psig, ASME Yes/No: No, 11 in Dia x 15 in H
  • Acceptance Volume: 3.2
  • ASME Yes/No: No
  • Connection Size: 3/4
  • Connection Type: MNPT
  • Diameter: 11
  • Domestic/Import: Domestic
  • Finish: Urethane Topcoat
  • Height: 15
  • Material: Drawn Steel
  • Maximum Temperature: 200
  • Pre-Pressure Rating: 50
  • Pressure Rating: 150
  • Series: ST Series
  • Tank Volume: 4.4
  • Type: In-Line

Amtrol® Therm-X-Trol® Thermal Expansion Tank, In-Line, Series: ST Series, 4.4 gal Tank Volume, 3.2 gal Acceptance Volume, 150 psig, ASME Yes/No: No, 11 in Dia, 15 in Height, Drawn Steel, 50 psig Pre-Pressure Rating, 200 deg F Maximum Temperature, MNPT, 3/4 in, Urethane Topcoat, Domestic

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.

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  • Features
  • Videos
  • 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
  • Standard/Approvals: IAPMO R and T Low-Lead, NSF/ANSI 61, PHCC Association
  • WARRANTY: 5 Years Limited