I would find out if all the materials that contact the wort are food grade. If they are, you are probably okay to use it. The description lists Santoprene and Viton, but doesn't say what the pump body is made from. Both the elastomers mentioned do come in food grade varieties, so there's a good chance these are okay.
Another question I would want answered is if you can throttle down the output to this pump like you can a centrifugal pump like the March pumps. This gives you some control over the flow rates.
And another question: how well can you clean and sanitize this if you are going to use it for post-cooled wort? Any dead spaces for wort to pool and bacteria/wild yeast to grow?
I know, always more questions and no answers... I would contact the tech service folks at the pump maker and start asking away.