Features: Helps prevent algae and improves water clarity Provides a constant chlorine dose Reduces the amount of algicide and flocculant you use Contains cyanuric acid (stabilizer) so that it won't be degraded by sunlight. Place floating dispenser at 10 per 4,500 liters (1,000 liters) of water. If you have a submerged pool, put the tablet in the basket, it is easy to melt in the water at a faster rate. Note: When using the pool, the floating water dispenser must come out of the pool. Do not put the tablet directly into the pool because They will damage the pads. Specifications: Quantity: 50 pcs Use: 10 pcs each contains 1000kg of water granules, use with a watering can, you can use directly. Included: 1 bag (50 pcs)100pcs x chlorine tablets Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store