Keep your pool water in great condition, ready when you are, with Pool FROG Bac Pacs. Designed specifically for Pool FROG Series 5400 and 6100, each Bac Pac is prefilled with 2.2 lbs. of Trichlor to supply a dependable amount of chlorine to your pool. Pool FROG Bac Pacs offer an easy, no mess, no guess, no stress solution to maintain cleaner, clearer, softer pool water, that makes your pool maintenance routine easier. Enjoy effortless pool care with prefilled Pool FROG Bac Pacs; no measuring or handling chlorine needed! The chlorine dispenser steadily releases chlorine, along with sanitizing minerals, which reduces chlorine use significantly. Less chlorine means water feels softer, swimsuits don’t fade, and pool surfaces are protected. Minerals also kill bacteria, condition the water for softness, help keep pH balanced and absorb acids. Pool FROG Bac Pacs are built for convenience; replace the Bac Pac every 1–3 weeks depending upon pool use, size and weather conditions. This bundle includes 3 Bac Pacs, providing weeks of reliable pool sanitizing and treatment. Enjoy simplified pool maintenance and superior pool water care with FROG’s innovative pool chemicals and sanitizing solutions. 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. *Compared to the minimum EPA recommended chlorine level of 1.0 ppm for a stabilized swimming pool.