Description: Name: swimming pool bubble Specification: 300pcs Shelf life: 3 years Storage: cool and dry place Applicable to: seed pool cleaning Features: multifunctional cleaning Specifications: Reduce harmful substances: reduce the amount of algae removal agent and flocculant. Reduce chemicals: prevent the loss of chlorine in direct sunlight, stabilize them, reduce the amount of chemicals you need to add, and facilitate use. Use 7 tablets per 2500 gallons of water per week to get crystal clear pool water! Increase transparency: pool effervescent tablets help prevent algae and increase the transparency of water. Environmental protection: no harm to the environment and aquatic organisms, safe to use. Package Included: 1 x effervescent tablets Notes: Don't leave 1 star and 2 star feedback without asking for help. If you have any questions, please contact us. We will try our best to solve any problems and provide you with the best customer service. 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.