The materials list in the Water Treatment Rules refers to Oxiclean in powder form, at $1.20 per pound. The stain remover product does not need to be the brand name Oxiclean as long as the product has similar chemical composition, form (powder), and is made for the same purpose (a stain remover). If a different brand is used, please make sure to use the price for Oxiclean Stain Remover at $1.20 per pound.