20g Chlorine Tablets Trichlor - Swimming Pool, Hot Tub, Spa Chlorine. Keep Your Pool Sparkling Clean with 20g Trichlor Chlorine Tablets. Powerful Sanitizer: Our 20g Trichlor tablets provide consistent chlorine release, helping to keep your pool water crystal clear and free from bacteria, algae, and other harmful contaminants.  Slow Dissolving: Designed to dissolve slowly, these tablets ensure extended sanitization, reducing the frequency of reapplication and saving you time. Convenient & Easy to Use: Simply place the tablets in your pool's skimmer or floating dispenser for hassle-free, long-lasting chlorination.