Water Heater Hydronic Expansion Tank; Type Vertical, Diaphragm; Inlet/Outlet Connection 1 Inch Female Threaded; Tank Material Urethane Painted 16 Gauge Cold Rolled Steel; Temperature Rating 240 Deg F; Pressure Rating 100 PSI; Tank Dimensions 16 Inch Diameter x 21.7 Inch Height; Tank Capacity 15 Gallon; Tank Warranty 5 Year Limited; Diaphragm Type Butyl Rubber; Air Charge Type Factory Pre-Charged; Air Charge Capacity 12 PSI; Inclusions/Features Brass Air Valve with Rubber O-Ring Seal, Welded Steel Connection, Corrosion Resistance; Application Water Heating System; Applicable Standard ANSI/NSF 61/372, TUV; Lead-Free
Lead-free Tank lines diaphragms are oversized which maximizes drawdown and minimizes wear This design feature virtually eliminates diaphragm stretch, further promoting longevity