I have a Century Lasar 2 speed motor, branded Hayward, purchased from Watsons with a SwimPro (cc1750) cartridge filter. I need help identifying what I really have. The motor label shows SP1520Z24ESC, part no 7-193824-01, 115V, HP 2. -2.5 SPL, 15.0/4.4 Amps. The model # on the pump housing is SW159412STL. I'm trying to figure out the true horsepower, the flow rate on H/L, and a suitable replacement so I can determine what heat pumps will work with what I have. The closest models I've been able to find is an ao smith BN51 (230V) or an uprated SP1593TL (1.5 HP 115V). Anyone have any experience with this private label motor? Thanks!