Check the listing for details. Multifunctional Instant Cleaning Pool Bath Pool Effervescent Tablets. Condition: New, Made in China. Listed at 9.99 USD. The product is a pool effervescent tablet designed for multifunctional instant cleaning of pool water. It helps improve water quality and is specifically made for pool cleaning purposes. Available in quantities of 1 or 10 pieces, these effervescent tablets are a convenient and effective solution for keeping pool water clean and clear. Easy to use and efficient, these tablets are a key tool in maintaining a healthy and hygienic swimming environment.The product is a pool effervescent tablet designed for multifunctional instant cleaning of pool water. It helps improve water quality and is specifically made for pool cleaning purposes. Available in quantities of 1 or 10 pieces, these effervescent tablets are a convenient and effective solution for keeping pool water clean and clear. Easy to use and efficient, these tablets are a key tool in maintaining a healthy and hygienic swimming environment.