Hi guys, would like to find out if you have seen similar gravel vac cleaners as shown here and its LFS address. I have seen ones that are cast as one whole piece and those are not suitable as I need the end caps to do the thing. Would like to DIY one CO2 reactor similar to what Ghazanfar Ghori of AB had made and test its efficiency against some of the reactors I have got.

If your current CO2 reactor is not doing a good job, you can DIY one similar to Ghazanfar Ghori without the need for plumbing tubes just by getting 2 of this stuff and remove one of its end caps and join it at the other end. CO2 inlet can be injected at the suction side of the filter strainer if you do the inline method. Oh, don't forget about the bio balls...Thanks in advance....

Regards
Peter Gwee