Just bought a new Sundance Optima spa which came with the Frog @ease 2-in-1 care system. I have to say I am hooked on the water conditioning of this product. I am so excited that I wanted to buy more product to insure I can always have water that feels this great! Unfortunately, I am finding it nearly impossible to find the mineral replacement cartridges (need to be changed ~ 4 months) that fit the Sundance/Jacuzzi cartridge holder. It would be a huge disappointment to have to change chemical systems because I cannot find the refills.
FROG @ease 2-in-1 Water Care® System
Hot tub sanitizer with minerals and up to 75% less chlorine*
This floating hot tub sanitizing system combines proprietary FROG Sanitizing Minerals® with patented SmartChlor® Technology to create Fresh Mineral Water®∞ that’s cleaner, clearer and softer. Unlike traditional chlorine that yo-yos after every use, SmartChlor is a self-regulating sanitizer — automatically adjusting output to maintain a consistently low chlorine level for weeks at a time.
Starting at $59.95
Find a Dealer* Compared to the minimum ANSI recommended chlorine level of 2.0 ppm for a hot tub
∞ Cleaner, Clearer and Softer water for pools, hot tubs and swim spas
Benefits
- Makes water care effortless
- Enjoy softer water, reduced chlorine odors and water that's gentler on your skin
- Mineral Cartridge lasts 4 months; SmartChlor Cartridge lasts 3-4 weeks
- Fill the hot tub with fresh water. If using source water high in calcium, iron or other metals, check with your dealer first — a metal control product may be needed. Drain and refill if switching from a bromine or biguanide system (no draining needed if converting from dichlor, as long as the cyanuric acid level is below 80 ppm).
- Test and balance the water in order: Total Alkalinity first (80–120 ppm), then pH (7.2–7.6), then Hardness (150–250 ppm).
- Add initial shock: With the jets running, pour one full packet of FROG Jump Start® start-up shock directly into the water (one packet per 600 gallons) to establish an initial chlorine residual.
- Heat the water to your hot tub manufacturer’s recommended temperature.
- Set the dial on the blue Mineral Cartridge to #7 (maximum setting). No further adjustment is needed — this cartridge lasts about 4 months.
- Set the dial on the silver SmartChlor Cartridge based on your hot tub’s gallon capacity (see the chart in your manual). This cartridge lasts about 3–4 weeks for an average 400-gallon hot tub, varying with hot tub size and bather load.
- Insert both cartridges into the floating holder one at a time. The best way is to put the bottom of the cartridge in the holder opening first with setting dial facing out and push each into place until secure.
- Place the assembled System into the hot tub to float.
Frequently Asked Questions
FROG @ease is an easy, low-maintenance hot tub sanitizing system that helps maintain clean, clear hot tub water with less effort. By combining FROG Sanitizing Minerals® with SmartChlor Technology, it creates Fresh Mineral Water∞ that’s Cleaner, Clearer, Softer and Easier® to care for. Unlike standard dichlor hot tub sanitizers, which spike and drop, SmartChlor maintains a consistent low chlorine level of 0.5–1.0 ppm. This self-regulating sanitizer automatically releases chlorine only when needed, making it one of the easiest ways to sanitize a hot tub without constant monitoring. Ideal for anyone looking for a simple hot tub water care solution, FROG @ease reduces chlorine use while helping maintain balanced water and simplifying ongoing hot tub maintenance.
No. Use FROG @ease Test Strips only. Standard strips will show misleading readings with SmartChlor Technology.
Hot tubs with 150 to 600 gallons are perfect for FROG @ease.
With standard chemicals, you experience peaks and valleys in your sanitizing routine. When you add more sanitizer, the level spikes. When you use the tub, the level drops. This yo-yo method goes away with FROG @ease because it maintains the same level of sanitizing from day 1 until the day the SmartChlor Cartridge is empty.
SmartChlor is a unique, patented type of chlorine. It will consistently maintain a 0.5 to 1.0 ppm chlorine level as long as the pH is balanced. This would not be enough on its own; but with FROG Sanitizing Minerals, it’s a perfect combination that kills bacteria with minerals and a low level of chlorine that create Cleaner, Clearer, Softer® water.
The blue Mineral Cartridge lasts four months. The silver SmartChlor Cartridge typically lasts 3 – 4 weeks. When the SmartChlor Cartridge is depleted, the FROG @ease Test Strip will be a lighter purple color than the test strip bottle label. That is your cue that it’s time for replacement.
SmartChlor is slightly more expensive than dichlor but less than other systems. SmartChlor offers a nearly hands-off experience that automatically maintains consistent sanitizer levels, saving you time and guesswork while delivering clearer, more comfortable water with minimal effort. And with up to 75% less chlorine*, your suits won’t fade and your hot tub has less wear and tear.
Keeping your hot tub balanced will extend the life of your SmartChlor Cartridge. Keep pH under 7.6. Over circulation could also deplete the cartridge faster.
Fresh Mineral Water∞ is our signature water quality experience — clean, clear and silky-soft water made possible by our patented mineral technology combined with significantly lower levels of chlorine. The result is water that’s gentler on skin and free from the harsh, over-chlorinated feel of traditional hot tub care.
1 FROG @ease Mineral Cartridge, 1 SmartChlor Cartridge, 1 FROG Jump Start Packet and 30 FROG @ease Test Strips
Let’s Connect
We’re here for you, weekdays 8-5pm.
Have a question or need a suggestion? Contact us for direct assistance, or send an email and we’ll respond within 24 hours.
Product Reviews
Our customers love our products.
See and read our reviews for this product.

