Pool FROG Mineral Reservoir 5400, and 3 Chlorine Bac Pac Cartridges Model 5051 for Inground Pools up to 40k Gallons

Replacement mineral reservoir and chlorine bac pacs for in ground Pool Frog mineral purifiers. The chlorine bac pac is a convenient pre-filled chlorine cartridge that connects directly to your Mineral Reservoir and automatically adds low level chlorine support for 1-3 weeks. Replacement mineral reservoir contains a combination of minerals for controlling bacteria and adding sparkle to your water. Value pack includes one mineral reservoir and three chlorine bac pacs.