125 PSI Working Pressure;Deep drawn steel is double the strength of head-and-shell designs;Stainless Steel System Connection;High grade 304L material for longer life in aggressive water conditions;Fresh Water Turbulator;Patented technology agitates incoming water to reduce stagnation;Heavy-Duty Diaphragm;Pro-grade material for durability;Polypropylene Liner;Nonmetallic barrier meets NSF International Standard 61, no sprayed-on coatings;Projection-Welded Air Stem eliminates potential leak paths to maintain precharge;No gaskets or threaded fittings;Welded Steel Base won't rotate out of position or wobble like some plastic stands or clamp-on metal designs;Lead Free Construction;No brass parts or lead-bearing components;5-Year Warranty