Our Pool Cleaning Tablets effectively guard against bacteria, algae, and other organisms, creating a safer, cleaner, and more enjoyable swimming experience. These tablets protect against chlorine loss in direct sunlight, reducing the amount of chemicals you need to add. Use 7 tablets per 2,500 gallons of water per week to achieve crystal clear pool water. In addition to sanitizing the water, these tablets also eliminate and control algae, purify the water, and protect against harmful sun rays. The tablets are adaptable to any pool or hot tub, easy to use, and long-lasting. Each bottle contains 100g of tablets with a shelf life of 24 months. Key Features: Effectively guards against bacteria, algae, and other organisms Reduces the amount of chemicals needed Eliminates and controls algae Purifies the water Protects against harmful sun rays Adaptable to any pool or hot tub Easy to use Long-lasting