I am going to be building a Inductor tank fermentor soon, and wanted to use full size quick disconnects. I work at Napa Autoparts, and can get "gator lock" cam lock fittings for dirt cheap. My only issue is that I cannot find conclusive info if the fiber reinforced polypropylene is food safe at low temperatures. I know there are FDA polypropylene specific fittings elsewhere, but the cost is four/five times more than what I would be paying. I would be using them for the dump valve and yeast catcher, but depending on safety levels, I am considering using them on everything in the brewery. Any input guys?