Teledyne Laars 10010806 Copper Heat Exchanger, 18 Tube Assembly, with glass-lined tubs, 4500I (indoor), 4000E (outdoor), Previous Part #20010806
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Teledyne Laars 10098906 Cupronickel Heat Exchanger, 18 Tube Assembly, with glass-lined tubs, 4500I (indoor), 4000E (outdoor), Previous Part #20098906
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