Powerhead for Protein Skimmer

[kalendo]

I am looking for a powerhead that will fit in my second chamber of my IM Fusion 20. With the lack of options I went with an Ebay HOB Protein Skimmer for cheap and was hoping to upgrade the powerhead when I found one that will fit my second chamber. But found out I have to look for it sooner than later.

This is my current Skimmer: https://www.ebay.com/i/291766147174?chn=ps&dispItem=1

I need a pump that will fit tightly, looking top down the sponge area won't fit the chamber its very close to the left wall exiting to the middle/return chamber. I tried point it to the opposite wall and still a no go. Any ideas? I will post a pick as soon as I can get my phone away from my 2 year old :X

 

[kalendo]

Without skimmer

With skimmer

Chamber is 4"x2.97"

 

[Jakes2514]

For what it's worth that skimmer looks suspiciously like a CPR BakPak2 which I used to have.

http://www.cpraquaticinc.com/bakpak2/

I used a MaxiJet 900 on it

 

[kalendo]

Thanks for the input! I bought a RIO seeing that its a good skimmer pump and could fit my chamber.