Description

The FROG® @ease SmartChlor® Cartridges for Sundance Spas (3 Pack) are the genuine refill cartridges for the @ease Sanitizing System custom-designed for Sundance Spas. Each cartridge is the chlorine-generating half of the @ease pair, sized and engineered to fit the Sundance cartridge holder — not the universal floating dispenser, not the Bullfrog floater. This is the Sundance-specific size.

For most spa owners, SmartChlor® cartridges are the most frequently replaced piece of the @ease system — each lasting about 3–4 weeks of normal use. A 3-pack gives you roughly three months of sanitizing on the shelf, which is the cheapest, easiest way to keep water care running smoothly without scrambling for a refill mid-month.

SmartChlor® is a unique chlorine compound that works only with FROG® minerals. It self-regulates — automatically delivering more free chlorine when your water demands it, and pausing when the level is right. Paired with the FROG @ease Mineral Cartridge, the result is up to 75% less chlorine than traditional water care, with no harsh chlorine smell, no daily dosing, and no weekly shocking. Swimsuit colors stay bright and your spa surfaces hold their finish longer.

Why Sundance-Specific Cartridges Matter: FROG makes @ease cartridges in three different sizes — universal floating, Bullfrog, and Sundance — and they are not interchangeable. The Sundance-sized cartridges are the only ones that fit correctly in the Sundance cartridge holder, so ordering by spa brand is the simplest way to guarantee a proper fit.
Brand

FROG®