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Replacement tube sheet/coil heat exchanger assembly for Pentair MasterTemp 250HD heaters (Pentair 474063; models 250HDNA and 250HD-LP1). It routes pool water through the combustion chamber to transfer heat and is built from cupro-nickel for improved corrosion resistance. Includes the coil sealing O-ring/gasket kit for installation.
Ships within 48 hours · Estimated delivery Jun 23 - Jun 28
US$40
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