I purchased these for personal use. http://www.ebay.com/itm/261135172902?_trksid=p2059210.m2749.l2649&var=560171981952&ssPageName=STRK%3AMEBIDX%3AIT I needed some more, and I prefer the breathable mesh with a charcoal filter to a straight plastic one. Atleast for personal use that is.... I just purchased 5 to start with, and for the price, I was happy with the product. I'll be purchasing another 15 or so down the road. Ill PM you for deets.
9/9/14 at 1:09pm