PhosLocker mini is designed for high-phosphate and high-usage pool environments, delivering powerful results in a simple treatment that takes less than 15 seconds. Each pouch can remove up to 1,500 ppb of phosphates in a 10,000-gallon pool. Recommend Use: ideal for spas and above-ground pools up to 5,000 gallons, or use 1–2 pouches per 10,000-gallon pool.