King Technology Pool Frog Bac Pac- 12 Pack

This fits your . by entering your model number. Contains 12 Replacement Bac Pac Cartridges (Model 5051) BAC PAC MODEL 5051 - BacPac Pool Refill Cartridges for use with Pool Frog In-ground or Above Ground Mineral Reservoirs Series 6100, 5400, 5100. 5200, 5600 Automatically controls rate of Chlorine delivery for 1-3 Weeks (depending on the size of your pool) Prefilled Cartridge makes replacement easy ?C it??s no mess, no guess and no stress! Low Level Chlorine Is Easier on Hair, Skin And Swimsuits