If you are plannling on using it for biodiesel, don't waste your money.
There's a funny *****"tropic" (the *s are some word that I can't remember) that's 96-97% ethanol, with the balance water, that comes out of the stills, not 100%.
It needs to be passed over a molecular sieve, or activated corn, or some-such to get dry ethanol.
My first coke bottle batches of Canola Ethyl ester used anhydrous ethanol from the lab. My next batches of soapy scum were made with denatured alcohol.
Was able to dry some with roasted Sodium Carbonate one time, but that's been very hit and miss.