Amtrol ST-5-C THERM-X-TROL ASME Expansion Tank, 2 Gallon (140-712) Typical Amtrol THERM-X-TROL ST-5-C ASME Expansion Tank Installations: • Residential Water Heaters • Laundromats • Hospitals and Nursing Homes • Car Washes • Dishwashers • Plant Washrooms • Hotels and Motels • Restaurants • Schools and Dormitories Amtrol THERM-X-TROL ST-5-C ASME Expansion Tank Specifications: • Tank Volume (Gallons) - 2.1 • A Diameter (Inches) - 10 • B Height (Inches) - 10-3/8 • System Conn. (NPT) - 3/4 • Materials: Steel shell, polypropylene liner, butyl diaphragm. Stainless steel System Connection • Maximum Operating Temperature = 200°F • Maximum Working Pressure = 150 PSIG • Factory Precharge = 55 PSIG • Field Adjustable * This product is non-returnable"