Lowes Or Home Depot. In the Cabents by the flooring. Just ask, they are labeled C22, C33, C44, so just ask for them by name. They are big and white, you cant miss'm.
thanks......i'm a little worried about heat in the summer months now. I don't have central a/c and that's an issue. i'm hoping to get away with a 250 hps and some floro's. i'm just not sure what to do now.