Response to I have an old AO Smith-labeled filter motor coupled to a 1MF-S pump with 1.5 HP impeller, 40k gal pool. The motor plate states 1.5 HP (1.10 SF), and Part 7-184949-22, which should be either 1.5 or 1.65 THP depending on interpretation. That part number seems to cross-reference to the B654 motor, which is only 1.4 THP. Based on THP matching, I would have used this B129 motor with 1.95 THP instead. Will the B129 work with this application?

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