Spa Frog Serene Bromine Cartridge start up kits It should be used outside

It should be used outside the spa

Can I add these tablets directly to the spa water

Can I put the tablets directly in the pool

This Complete @ease Floating System Package Includes:

Cold-Water or Alternate Application

Spa Frog Serene Bromine Cartridge start up kits It should be used outsideFROG Serene Replacement Bromine Cartridge 1 Pack Quick, Easy Bromine Replacement for the FROG Serene Floating System Keep your hot tub water clean, clear, and easier to maintain with the FROG Serene Replacement Bromine Cartridge (150 grams, Yellow Cartridge). Designed for use with the Hot Tub FROG Serene Floating Sanitizing System, this prefilled bromine cartridge helps simplify spa water care by reducing measuring, scooping, and routine chemical