Picking a glass diffuser for DIY CO2

[Nak]

I was looking at glass diffusers/reactors for a DIY setup and came across this

http://cgi.ebay.com.au/S8-CO2-Diffu...rksid=p3286.m63.l1177&_trkparms=|293:1|294:50

I was about to put an order down until i read this "Compatible for pressurized Co2 tanks, but not yeast bottles." I was wondering what makes this different from other diffusers that can be used in DIY setups, is it the inbuilt reactor? Does a DIY setup not produce enough pressure to expel the gas through that sort of diffuser?

 

[Nak]

also, if i were to simply get the co2 tube and stick it up my eheim's filter intake, would that get me better results than with a nano glass diffuser?

 

[timwag2001]

i guess diy doesnt have enough pressure to force it through the ceramic stone. the filter idea works pretty well but i've heard it can make your filter noisy.
i went in true diy fasion and made one similar to rex griggs. http://www.rexgrigg.com/diy-reactor.htm

 

[James0816]

I believe with that type of diffuser, the DIY method won't work as it will need more pressure to push through. However, I use the ordinary glass diffusers on my setups and they work wonderfully. One thing I did have to do however, was to silicone around the tubes in the lids due to the pressure build up.

 

[Slappy*McFish]

I use this one with my DIY CO2 with excellent results. Not sure how big your tank is but I'd go with at least one diffuser per 20G of water.
http://www.greenleafaquariums.com/co2-diffusers/diffuser-nano.html