Here is what I bought. I emailed the guy to ask about the info you posted. See if this helps. I am still feeling my way with all this stuff and can't figure out why it disappeared for so long and started back when I started deep aeration.
Thanks pics to follow
http://www.ebay.com/itm/250848645707?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

Last edited by esshup; 09/01/11 08:52 PM. Reason: Turned it into a working link