This is all the parts to my Ozone/reactor. I'm using 4" acrylic because I had it laying around and PVC will fit over it. Using the Weldon 2007 - melts the PVC and Acrylic together. so now all I need to do is add a few holes to the actual reactor and it's finished. BTW - I'm using bioballs to give the O3 lots of time in the reactor and I most likely will make a mixing area where the O3 and tank water will mix - not sure if this is necessary but might add it just to make sure.