The FROG® @ease SmartChlor® Cartridge is the chlorine-generating cartridge for spas equipped with the @ease In-Line System — the version built directly into the spa's filter compartment rather than floating in the water. It's the consumable that does the daily sanitizing work, releasing a low, steady level of chlorine to keep your water clean and clear between water changes. If you own a hot tub, you already know the real cost isn't the chemicals — it's the time and the constant attention. Test, dose, wait, retest, shock, repeat. The @ease system was built to take that off your plate. Instead of manually managing chlorine, the SmartChlor® cartridge continuously releases sanitizer using SmartChlor® Technology — a self-regulating chlorine that activates only when your water needs it. Working alongside FROG® minerals, the result is water that stays clean with up to 75% less chlorine than traditional systems, no harsh chlorine smell, and far less hands-on maintenance. This is the replacement SmartChlor® cartridge for the In-Line setup, so keeping one on hand means you're never caught with a spent cartridge and water that's drifting out of balance. You simply swap in the fresh cartridge when the indicator tells you to. Why Consistent Sanitizing Matters: A hot tub left under-sanitized for even a few days can turn cloudy, develop odor, or grow biofilm in the plumbing. Because SmartChlor® releases sanitizer continuously and self-regulates, it protects your water during the gaps that trip up manual care — vacations, busy weeks, and the days you simply forget to test. Brand FROG®
