Hot Tub Replacement Cartridges-3Pack Compatible with Frog Ease Mineral & SmartChlor for Marquis, Caldera, Artesian & Hot Springs Spas, CYA-Free Sanitizer, Up to 600 Gallons

The prefilled design helps maintain a stable, low free-chlorine level, delivering water that is cleaner, clearer, and softer to the touch. Reduces harsh chemical odors and irritation, making routine hot tub maintenance easier and more comfortable.

• 3-pack for continuous, worry-free use, ideal for hot tubs up to 600 gallons, compatible with Marquis, Caldera, Artesian & Hot Springs spas
• Long-Lasting & Gentle – Treats up to 600 gallons for 3–4 weeks, reduces chlorine for soft, comfortable, and safe water without raising cyanuric acid.
• Reduces Chlorine & Softens Water – Uses up to 75% less chlorine*, making water gentler on skin, hair, swimsuits, and hot tub surfaces. Sanitizing minerals help soften water for a more comfortable soaking experience.
• Seamless Compatibility – Designed to work perfectly with the FROG Mineral Cartridge for quick, effortless, and hassle-free installation.
• Compatible only with select hot tub models: Artesian Elite, Artesian Island, Marquis Crown, Caldera Vacanza, Hot Spring Hot Spot.***Optional on Artesian Island Elite, South Seas, Marquis Elite, Vector, and Celebrity.