The Puffer Forum

I have that info in a non-connected computer in another location. I will get back to you later today. There is a number per gallon capacity. I'll also check the physical size - they are much smaller versions of the older W/D Dupla Biokaskade spheres.

I do have copies of the original article in that machine and as hard copy and on discs as well, so it can be restored w/o problems.