Clorox Pool & Spa XtraBlue 23025CLX Chlorinating Tablet, Solid, Chlorine, 25

Long-lasting chlorinating tablets. Slow dissolving 6-in-1 formula. Kills bacteria. Controls algae, prevents corrosion, scale and metal staining. Makes water silky smooth. Includes built-in stabilizer to protect chlorine from sunlight degradation to last longer. Skimmer, feeder or floater application.
Product Details
Color: White
Compositions: Trichloro-S-Triazinetrione Boric Acid
Form: Solid
Net Content: 25 lb
Odor/ Scent: Chlorine
Package Size: 25 lb
p H Range: 3 to 3.5
Relative Vapor Density: 0.88 to 0.96 g/cc
Size: 3 in
Features

Controls algae
Prevents corrosion and scale
Kills bacteria
Removes organic contaminants for clear water
Makes water silky smooth
Protected against sunlight to last longer
Slow-dissolving 6-in-1 formula