Sure Grip 50 Magnetic Power Head Holder by Algae Free

[Chin_Lee]

i rate them 8 of 10 as well. I love them as they are very discreet and holds my Tunze 6080 in place very well.
PROS:
-small and discreet but strong
-puts the powerheads anywhere you want in the tank

CONS:
- I don't really like the rubber feet that keeps coming off - debating to remove these to make moving around the magnet easier
- the holders cannot go upside down BUT a little bit of silicone (and letting dry before installing) should do the trick for this little problem