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.
Antimicrobial liner neutralizes bacteria on contactPatented Turbulator™ water circulation deviceInSight™ indicator cap tank service alertStrongest tank design featuring deep drawn steel and multi-dome constructionThickest diaphragm - heavy duty butylProjection welded air stem to help eliminate leaksExclusive ST-1 for tankless water heaters
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