This is an ever going dilemma. Easy Clean and One Step are normally listed as cleaners. You still can't convince me that the Sun O2 cleaner or Oxi Clean isn't the same stuff. Sometimes these are categorized as sanitizers at some LHBS. Like Wade says, a chemical has to go through a very expensive FDA certification process to be able to be labeled as a sanitizer. With this said, can it be used as a sanitizer? Well, I can't officially tell you that. But I can tell you that many batches have been made at my house when I have ran out of Na Meta or Star San.
There are plenty of inexpensive options out there though. Star San may seem expensive but a little goes a long long way. It can be used over and over and will keep for quite a while. I use it until it either quits foaming or turns a cloudy, milky white. K-Meta or Na-Meta (what I use) is very cheap and last a long time as well. If it burns your nose, it is still emitting sanitizing sulfites. I use Star San for beer and Na-Meta for wines.
The real thought here is to keep your stuff very clean. There is cleaning and there is sanitizing. If you clean your equipment after use, and I don't mean just rinse it off, but clean it. You are going to have very little chance of bacterial contaminations. Clean stuff real good and keep a spray bottle of a Na-Meat or K-Meta solution to spray the item down and you are good to go. If you don't clean well, the spray down of sanitizer may not do it for you.