Pure Power Toilet Bowl Cleaner effectively removes hard water deposits without heavy scrubbing. Pure Power contains no harsh chemicals, won't scratch or stain your toilet bowl, and will not diminish the effectiveness of other enzyme and bacterial-based toilet tank treatments. Specifications:• Volume: 24 fl. oz.• Weight: 1.8 lbs.• Manufacturer: Valterra Products, LLC• Model#: V23500 Contains no harsh chemicals Will not scratch or stain your toilet bowl Won't diminish effectiveness of other treatments | Valterra Pure Power Toilet Bowl Cleaner, 24 Oz