Hybrid Theory - Prime also gets cheaper when purchased in bulk, about .15 cents per gallon
It doesnt get anywhere near as cheap as your reference
Prime does hold a bit of an advantage of binding ammonia, nitrite, nitrate and a small handful of other claimed advantages
The link you provided doesnt give any details of any such advantages
Im by no means criticizing the product you linked us to, simply pointing out some differences
The users will have to decide if these differences are worth the cost
Feel free to be the one to research that topic and fault me if its not. I couldnt get anywhere with it beyond manufacturers claims
Which I also encourage you to second guess