Pooltester 2 x 20 tabl
The SPA FROG® Mineral Cartridge for In-line and Floating System. In-line System is built right into the spa and uses the same mineral and bromine cartridges as the SPA FROG® Floating System. For easy top loading of replacement cartridges, simply open the cap, pull up the holder and snap them in.
Cartridge allows you to safely drop your bromine level to 1-2 ppm and lasts upto 4 months.