Frequently Asked Questions

• How often do I need to replace the FROG @ease cartridges?
  Typically, both the SmartChlor and Mineral cartridges last 3-4 weeks, depending on spa usage and bather load. The convenient flip indicator on the holder will turn over when it's time to replace them.
• Is this compatible with my Sundance Spa model?
  Yes! The FROG @ease Floating 2-in-1 Holder (part #6473-334) is designed to work with all Sundance Spa models. It's a genuine Sundance replacement part engineered for perfect compatibility.
• Can I use this holder with other spa brands?
  While specifically designed for Sundance Spas, the FROG @ease system can work in most hot tubs. However, we recommend verifying compatibility with your spa manufacturer or contacting our expert team for guidance.
• Do I still need to shock my spa when using FROG @ease?
  Yes, occasional shocking is still recommended (typically once a month or after heavy use) to oxidize organic contaminants. However, you'll shock far less frequently than with traditional chlorine systems.
• What's the difference between SmartChlor and regular chlorine?
  SmartChlor is a slow-dissolving chlorine that maintains a consistent low level (0.5-1.0 ppm) versus traditional chlorine's fluctuating 3-5 ppm. This means less chemical smell, softer water, and up to 75% less chlorine use.
• Where can I buy replacement cartridges?
  Hot Tub Things carries genuine FROG @ease replacement cartridges for both SmartChlor and Minerals. Browse our Hot Tub Chemicals collection or search for "FROG @ease cartridges" on our site.