GLB Supersonic 73% Cal Hypo Granular Chlorine Shock Size:1 lb pool parties and heat waves

pool parties and heat waves happen… hopefully

Your water looks remarkable and pool maintenance is easy

Use this cell to plug one end of your salt cell while you clean it with muratic acid

– Add 1 lb

water conditioner

GLB Supersonic 73% Cal Hypo Granular Chlorine Shock Size:1 lb pool parties and heat wavesSuperSonic sanitizes, clarifies, fights algae and wont overstabilize pool water. Its safe for use on all pool surfaces and leaves no residue. Contains 73% available chlorine. Add 1 lb. per 10,000 gallons directly to the pool. For best results, add during the evening hours. Compatible with chlorine and salt water chlorine sanitizing systems.