Frog Serene Spa Bromine Cartridge, Yellow Winter Closing deflated)—ideal for kids

deflated)—ideal for kids

and debris

daily use in any pool setting

Durable and reusable design for use all season long

reduces waste

Frog Serene Spa Bromine Cartridge, Yellow Winter Closing deflated)—ideal for kidsFrog Serene Spa Bromine Cartridge, Yellow FROG Serene Spa Bromine Cartridges (Yellow) make hot tub care simpler by delivering a steady level of sanitation with less work and fewer chemicals. Designed for use with the FROG Serene Floating System, they help keep your spa water clean, clear, and comfortable while reducing the amount of bromine you need. These pre filled bromine cartridges work together with FROG Sanitizing Minerals to create Fresh