Fryout is a great product. 90% sodium hydroxide if I remember right, the rest is surfactant. Its basically sodium hydroxide beads in a bucket instead of a bag.

The sodium hydroxide or potassium hydroxide debate is never ending. I can get the same amount of guys that will swear by either one. You are going to have to figure out what works best for you on that one. Personally I can't tell the difference, the way I understand the chemistry of it, it's the ph that breaks down the grease, and they are both on the same end of the spectrum.