Hold on a second while I find the container..This is a commercial product manufactured by Clean Control Corp.. Its name BioDrain Control. I order it in gallon jugs from GA. Phone 478.922-5340. It is shipped by the carton and 4 is the number of anything you can buy BUT they can be different products. OdoBan, Stain Control, other cleaning products...
Web site is
www.cleancontrol.com