Clorox Pool & Spa All-in-One XtraBlue Chlorinating Granule, Net Content: 6 lb, Solid, Odor/Scent: Slight Chlorine, White, Compositions: Trichloro-s-triazinetrione, Boron Sodium Oxide (B4na2o7), Pentahydrate, Application Method: Pour, Flammability Rating: 0, Density: 0.995 g/cc, pH Range: 3.7