False advertiser, be very aware. I trusted his "expert" opinion when purchasing an RO water filtration unit for my home. Several months later when I go back to purchase filters I am advised I didn't buy an RO unit, but a simple water purifier. When he and I both reviewed the advertisement (ebay listing) it states RO DI in the item description. When I confronted him with this advertisement, he stated he does that to get the attention of buyers, and buyers need to better educated to purchase equipment. I trusted this seller and... read full review »