100# sand filter is too small for a 24' round pool.

And a TRUE 1 HP pump is much too large for a 100# filter. But, manufacturers play all sorts of funky games with AG pump HP ratings. To tell anything, you have to actually find (lots of luck) and look at pump flow/pressure charts.

A 19" filter would be good. A 16" filter is very marginal. Both need a sand depth of AT LEAST 8" and 12" is better.

This is more what you are want: Hayward S180T ProSeries Sand Filter