4LB Stabil/Conditioner

HTH Pool Care, 4 LB, Stabilizer & Conditioner, Cyanuric Acid, Protects Chlorine In Pool Water & Prevents Chlorine Loss Due To Intense Sunlight, Active Ingredient 1.3.5-Triazine-2.4.6 1H, 3H, 5H-Trione 97-99%.