chemical intercooling what do you use

I'm looking to buy a water/meth kit for my car, but I wanted some input form everyone here. What kits do you have what do you like/dislike about it ect. Thanks for the input.

I have the supercharger store one.. Its a few years old.. Mine doesnt have a pressure regulated output like some do.. Mine comes on a 4lb
and sprays.. Seems to work fine anyways..