King Technology FROG Serene Sanitizing System
Best sanitizing system for hot tub owners seeking softer, low-chemical water.
This floating system takes the guesswork out of spa maintenance by pairing mineral conditioning with a drastically reduced reliance on harsh bromine. You sacrifice the hands-on control of traditional chemical balancing, but you gain crystal-clear, skin-friendly water with virtually zero daily effort.
$59.95
at
In The Swim
More Spa Frog options
Who it's for
- Families wanting a gentler, irritation-free swimming environment
- Swimmers sensitive to harsh chemical odors and dry skin
- Pool owners seeking a low-effort, automated maintenance routine
Who should skip it
- Users with automatic cleaners or covers needing clear surfaces
- Budget-conscious owners avoiding recurring proprietary supply costs
- Owners of high-traffic pools needing heavy-duty sanitization
Performance breakdown
Chemical Efficiency
Drastically cuts bromine dependency for a more natural soaking experience.
Ease of Maintenance
Simple cartridge swaps make routine spa care virtually effortless.
Water Comfort
Mineral conditioning leaves skin feeling soft rather than harsh or dry.
Equipment Protection
Gentle mineral-based sanitization helps extend the lifespan of spa components.
System Versatility
Floating design allows for quick removal and flexible spa usage.
Setup Simplicity
Everything needed for immediate startup is included in the box.
Key Specs
Weight
1.2 lbs
Dimensions
7 x 4.25 x 4.25 inches
System Type
Mineral Systems
Pool Type
Spa/Hot Tub
Maximum Pool Capacity
600 gallons
Installation Type
Floating
Mineral Cartridge Replacement
Every 4 months
Bromine Cartridge Life
2-4 weeks
Know before you buy
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