Photo 1 of Hot Tub Cartridges Replacement for Frog Ease Floating System?Compatible with Frog Ease Floating System?Continuously Releasing Chlorine for 3-4 Weeks?Smart Self-Regulating Water Treatment-3Pack

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Photo 1 of Hot Tub Cartridges Replacement for Frog Ease Floating System?Compatible with Frog Ease Floating System?Continuously Releasing Chlorine for 3-4 Weeks?Smart Self-Regulating Water Treatment-3PackPhoto 2 of Hot Tub Cartridges Replacement for Frog Ease Floating System?Compatible with Frog Ease Floating System?Continuously Releasing Chlorine for 3-4 Weeks?Smart Self-Regulating Water Treatment-3Pack