Frog @ Ease XL Smart Chlor Cartridges 3 pk for Bullfrog w/ Simplicity

This all-new FROG® @ease® XL Simplicity cartridge system is designed specifically for Bullfrog Spas models with the Simplicity Filtration System (flat rectangular filter). This includes all M Series models and 2023 and later A Series models. The XL size cartridges included contain 67% more SmartChlor than regular size cartridges and are recommended for up to 1 month of use in models in 8 & 9-sized spas or for even longer life in smaller models.