Cleans Water & Stops Algae: Kills harmful bacteria and prevents equipment corrosion, scale and stains.Kills and prevents all types of swimming pool algae (green, mustard, black)Long-lasting sunlight protection: Contains chlorine stabilizer to extend the life of your cleanCreates Silky Smooth Feeling Water: XTRABLUE chlorinating tablets contain conditioners for silky smooth feeling waterUsage: Apply 2 tablets weekly to treat 10,000 gallons of water, add more tablets as needed to maintain adequate sanitation.Safe for all swimming pool surfaces, including vinyl, plaster, fiberglass, and tile.Clorox Pool App: Test like an expert anytime, anywhere with the Clorox Pool App.Solve common swimming pool problems and get personalized product and dosage recommendations

Clorox Pool&Spa XTRABLUE 3" Chlorinating Tablets, Individually Wrapped, Kills Bacteria & Stops Algae (5 LB);24205CLXW.

Maintaining For Clean, Algae-Free WaterProper Chlorine

Surface Protection

Prevents equipment corrosion, surface stains and scale.

Long-Lasting Sunlight Protection

Enriched with a chlorine stabilizer to extend the life of your clean.

Silky Smooth Feeling Water

Contains conditioners for silky smooth feeling water.

Maintain a Clean Pool

Weekly-Use

Maintain 1 to 4 parts-per-million of Free Chlorine by applying tablets weekly.

Easy Application

Apply chlorinating tablets to your feeder, skimmer or floater.

Test Weekly

Your pool chemistry can change quickly. Test your pool water weekly to ensure your chlorine and pH remain within optimal swimming ranges.