I just got my Hydor Model 3 today and here's my initial rundown:
Cost: $40 at
Dr.'s Foster and Smith
Rated at 850
gph @ 6.5 watts.
Installation was a snap. I have provided a bunch of photos of the box, pump, disassembled parts and size references. That's a US quarter for size reference.
When the pump starts, there's a possibility of rattle from the impeller blade because it can slide the length of the metal shaft it turns on, but it did not cavitate the way my Seios do on startup.
