This 12-pack of HTH Pool Care Shock Advanced is $22 off its regular price of $56 and $2 less than our recent mention. The cal hypo formula works without adding cyanuric acid, avoiding chlorine lock in pools that already carry stabilizer. Buy Now at Amazon
Features
Cal hypochlorite (cal hypo) formula 4-in-1 shock treatment 1 lb. per bag, 12 bags per pack Dissolves within 24 hours Compatible with vinyl-lined & saltwater pools No cyanuric acid (CYA) added
