This Spa Frog Bromine Cartridge is for use with the Spa Frog Floating or In-Line Systems or as a stand alone floating product. The Spa Frog Bromine Cartridge is adjustable to meet the needs of each spa and lasts on average 2-4 weeks.
SPA FROG® In-Line System
The SPA FROG® In-Line System, with its patented design, is built right into the Hot Tub or Spa using the same replaceable mineral and bromine cartridges as the SPA FROG® Floating System. Simply open the cap, pull up the holder and snap in the cartridges. Marquis Spas, Caldera Spas & Emerald Spas are just a few brands that use the SPA FROG® In-Line System.