Hmmm, I pulled up both homedepot.com and lowes.com, a search of their site turns up nothing!
Later I will go into the store and inquire ... however, those "workers" (and I use that term lightly) have a habit of "going stupid" on me--i.e., I usually have to find what I am looking for myself, after they tell me they don't have what I am looking for. LOL!
Ask and google shall retrieve. Hmmmmmm It seems that prolonged exposer cause cancer in California. Thank god i live in North Caroline where it dont cause cancer....lol http://www.thoroproducts.com/where_to_buy.htm
same thing with plaster dude... it causes cancer here... why do you think it is the leading killer behind heart disease... btw, most people die of cancer here tho... anyway... I really like this project... I will definitely use it when I get a display tank