Hot Tub Replacement Cartridge Compatible with Frog Ease Floating System，Work Together with Frog Mineral Cartridges to Support Easy Pool Maintenance and Cleaner & Clearer Water- 3 Pack

3 Pack Replacement Cartrides for use with Frog Ease the Floating System Mineral Cartridge, ideal for hot tubs up to 600 gallonsThe Cartridges require no maintenance or monitoring; each cartridge lasts 3 to 4 weeks depending on the size of your tub and how often it is usedSeamless Compatibility – Works exclusively with the Frog Mineral Cartridge for quick and hassle-free installationSimple Installation ＆Effortless Use: Compatible with Frog Floating Cartridges for an easy setup. Just flip and replace when needed—ideal for first-time hot tub owners or those who want a no-fuss maintenance solutionWARNING: ONLY for Frog HOT TUB floating system, do not use it with Flippin Frog Pool floating system