Penguin Powerhead Model 550
I've had in the past and couldn't find them any place else but here.
July 12, 2015
These power heads work perfect for my sponge filters in my Discus tanks! Only power heads I will buy.
February 16, 2015
This pump runs quiet. I am happy with this pump. I started a new 20 Long tank, (30 X 12) and it seems to be just right with the undergravel filter. I also have the other Penquin models and they are quiet running and have been running for years.
March 19, 2014
reliable long lasting product
I have used these powerheads for some time. Couple it with the sponge filter and they make a good circulating jet for a reef tank; exactly where you need that extra circulation. The sponge makes a good home for various amphipods and copepods
February 5, 2014