Yeah, pump and filter ratings are driven more by marketing concerns than by a desire to accurately represent performance.
The Hayward Super Pump is an old line inground pump, that has been very durable and reliable. The Power-Flo pumps are much newer and are above ground pumps -- which means the horsepower ratings have no particular meaning that I've been able to figure out.
A 3/4 HP Super Pump would work well with most 24" sand filters. If you want to be REALLY efficient, getting a 2 speed Super Pump will give you better filtration AND lower electrical operating costs. But 2 speed pumps for IG pools are almost always 220V, and few AG pools have 220V feeds.
A 2 speed PowerFlo Matrix, like this one:Hayward SP15922S Power-Flo Matrix Above-Ground Pump 2-Speed @ Amazoncould perform well with a 24" sand filter. Here's the Hayward page for that series: Hayward PowerFlo Matrix, and the flow table:
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