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FROG Serene in-Line Cartridges for Hot Tubs That Have Built in Cartridge Holders, FROG Serene Mineral Cartridge + 3 Bromine Cartridges (200 Grams)

4.4 (5) Write Review
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$94.80

$ 38 .99 $38.99

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About this item

  • This FROG Serene In-Line Cartridge Replacement Bundle gives you weeks and weeks of ahhmazing hot tub water, for use in FROG Serene In-Line System. The Bromine and Mineral Cartridges fit in the Cartridge Holder installed on select Marquis Spas, Artesian, Caldera Spas and Hot Spring Spas
  • FROG Serene is a complete sanitizing system that eliminates organic contaminants 2 ways with a low level of bromine and FROG Sanitizing Minerals resulting in Cleaner, Clearer, Softer water that is Easier to maintain
  • The FROG Serene Fresh Mineral Water hot tub system includes a Bromine and a Mineral Cartridge to eliminates organic contaminants 2 ways, reduce bromine use up to 50%* and improve the overall quality of hot tub water
  • Using far less bromine makes water easier on skin, hair, swimsuits, and hot tub surfaces. FROG Sanitizing Minerals condition the water for softness and absorb acid to help keep pH balanced
  • This bundle includes 1 FROG Sanitizing Mineral Cartridge, which lasts 4 months; minerals eliminates organic contaminants, condition the water for softness and absorb acids – water feels much more comfortable, and 3 FROG Serene Bromine Cartridges (200 grams) - each lasts up to 4 weeks, depending on hot tub size and use. Prefilled Cartridges mean no touching or measuring bromine – no mess, no guess, no stress!
  • Unlike chlorine, bromine slowly dissolves in hot water so it’s easier to regulate, has far less odors and is less impacted by pH swings making sanitizing more effective. Say goodbye to constant monitoring. The Mineral Cartridge must be replaced every 4 months to effectively sanitize the hot tub, it works with the Bromine Cartridge to eliminates organic contaminants 2 ways


Product Description

Serene In-Line System with Hot Tub
Cartridge Display Serene In-Line System
Fresh Mineral Water Certificate Serene In-Line System

Blue Mineral Cartridge Step 1

Green Bromine Cartridge Step 2

Green Bromine Cartridge Step 3

Blue Mineral Cartridge Step 4

FROG Water Care App
FROG Serene In-Line System Cartridge holder in use hot tub
Different attributes

Thomas P.
Reviewed in the United States on March 10, 2025
Exact replacement
Robin Garcia
Reviewed in the United States on February 17, 2025
Love this stuff! I can’t stand the chlorine in the hot tub but this stuff is great! Keeps the tub clean and my skin soft!
JL
Reviewed in the United States on June 24, 2024
Quick delivery and good value
Customer
Reviewed in the United States on November 29, 2024
Great product that keeps your hot tub sanitized without having to physically add a sanitizer.
carrie K.
Reviewed in the United States on January 23, 2024
No matter what we do frog products have not worked. Always low on bromine no matter what. I would go with something other than frog