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Amtrol hydronic expansion tanks are for use in closed, non-potable hydronic heating and chilled water systems. Available in diaphragm, full acceptance and partial acceptance bladder designs, all Extrol® expansion tanks are made in the USA at our ISO 9001: 2015 certified facility. ASME tanks meet all Section VIII, Division I standards.
AMTROL AX-15-DD 125 PSI 416837 ASME DIAPHRAGM EXP TANK