Amtrol® Therm-X-Trol® Thermal Expansion Tank, In-Line, Series: ST Series, 4.4 gal Tank Volume, Acceptance Volume: 3.2 gal, 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
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