[SERRAPYGO]

I have both and one is as good as the other. The Emp seems to filter a little better while the AC puts out a heavy water flow creating good current. You really can't make a wrong decision here.

 

[SERRAPYGO]

Oh yeah... they both take up about the same amount of space in the back.

 

[SERRAPYGO]

thanks dude going with the AC 500 ! seems like a better deal money wise !