Keep your swim spas and hot tubs in great condition and ready for use with FROG TArget. This alkalinity stabilizer raises total alkalinity in your hot tub or swim spa—and makes the job easy. This water balancing product comes with the unique FROG TruDose Cap that seals the bottle tightly and measures precisely for easy care. A large, easy-to-read gallons chart on the bottle gives clear, concise dosage directions for hot tubs and swim spas. Measurements are clearly marked on the FROG TruDose Cap. You simply pour this alkalinity increaser into the cap to the correct measuring line for clean water. Since the measuring cap seals the bottle, it’s always at hand—no more searching for measuring tools. When you measure precisely, you won’t have yoyo effects from adding too much or too little for reliable alkalinity support. Test your hot tub or swim spa’s total alkalinity level at least twice per week, with a test kit or strips. Keep the total alkalinity range between 80–120 to prevent corrosion. Ideally, keep it in the middle of the range with this water treatment. The total alkalinity of your hot tub or swim spa should always be the first factor you test and adjust when balancing before adding additional chemicals. This everyday balancing product is one of 5 FROG Hot Tub and Swim Spa Support Chemicals to help you with hot tub or swim spa care and water balancing. You’ll find consistent measuring and dosage on all 5 FROG Hot Tub and Swim Spa Support Chemicals, all designed to make your startup and everyday water care easier. For more than 25 years, FROG has sanitized pools, hot tubs and swim spas with its innovative, patented Mineral Technology that makes water care easier. FROG's prefilled cartridges mean no mess, no guess and no stress water care for your pools, hot tubs and swim spas. Each FROG product helps make your water cleaner, clearer, softer and easier. No matter what size pool, hot tub or swim spa you have, FROG has a solution for it.