King Technology FROG Serene Sanitizing System
Best low maintenance solution for busy hot tub owners.
This floating system takes the guesswork out of hot tub maintenance by swapping harsh chemical measuring for a simple, mineral-based cartridge. You trade the precision of manual dosing for a set-it-and-forget-it experience that leaves water feeling noticeably softer on your skin.
$59.95
at
In The Swim
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Who it's for
- Hot tub owners seeking a low-maintenance water care routine
- Bathers with sensitive skin or a dislike for chemical odors
- Busy individuals who want automated and reliable water treatment
Who should skip it
- Budget-conscious owners looking to minimize long-term operating expenses
- Owners of older or incompatible spa models without integrated housings
- Experienced spa operators who want total control over water chemistry
Performance breakdown
Maintenance Simplicity
Cartridge-based system removes the guesswork and mess of manual chemical dosing.
Water Comfort
Mineral technology creates a noticeably softer feel compared to traditional chlorine.
Chemical Efficiency
Significantly lowers bromine reliance while maintaining high sanitization standards.
Ease of Installation
Floating design requires zero plumbing or complex setup for immediate use.
Equipment Longevity
Reduced chemical harshness helps extend the lifespan of spa components.
Capacity Scalability
Perfect for standard hot tubs, but limited for larger swim spas.
Key Specs
Pool Type
Spa/Hot Tub
Treatment Volume
600 gallons
Sanitizer Type
Minerals and Bromine
Application Method
Floating
Chemical Form
Tablet
Product Type
Bromine
Pool Type Compatibility
Spa
Maintenance Interval
Mineral cartridge every 4 months; Bromine cartridge 2-4 weeks
Included Accessories
1 Bromine Cartridge, 1 Mineral Cartridge, 1 Floating Cartridge Holder, 1 Packet of Jump Start Sanitizer, 1 Sample Bottle of Test Strips
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