My whisper power filter just broke yesterday after aobut 15 years or so of operationRaptor said:My whispers gph is 380. 120 gph less than ac's One they are a little cheaper. And two They are quite a bit more quiet. The whisper is more setup for biofiltration with the bigger filter pads and sponge filter that goes with it.
Plus the filter pads are alot cheaper than the ac's. The ac just pushes more gph thru it. Try one of each if you like.
If you can, take both out of the boxes and compare the quality. I had both and like my whisper better. I sold my ac because it drove me up a wall listening to it.