I have a set from Cal Aqua, not the ADA set. But the second one, the more expensive one, looks more like the intake I have....with the series of slits near the bottom used as intakes.
The first one looks like it might have just a hole in the bottom, perhaps for attaching tubing to get the intake down lower in the tank?!? Pure guess work on that one.
The first one looks like it might have just a hole in the bottom, perhaps for attaching tubing to get the intake down lower in the tank?!? Pure guess work on that one.