Steven Pituch at w2my at ev1_net wrote: > I hear the Magnum is rather inexpensive, and if it is quiet, I may get one > to keep the water polished on an ongoing basis. I wonder how much the > micron filters cost? The micron elements are about $6 at ThatPetPlace. You can also clean and reuse them many times by soaking in a bleach solution. My Magnum 350 is pretty quiet, btw. Dan Dixon