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4 FROG Serene Bromine Replacement Cartridges for Hot Tubs for use only with FROG Serene Floating Sanitizing System + FROG Test Strips, Quick and Easy Sanitizer + Test Strips

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$75.50

$ 30 .99 $30.99

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About this item

4 FROG Serene Bromine Replacement Cartridges for use in FROG Serene (formerly Spa FROG) Floating System or In-Line System with the Mineral Cartridge (sold separately); FROG Serene eliminates organic contaminants 2 ways with a low level of bromine and FROG Sanitizing Minerals
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 FROG Serene Fresh Mineral Water hot tub system uses Bromine and Mineral cartridges designed to eliminates organic contaminants, reduce bromine use by up to 50%* and improve the overall quality of hot tub water
You use less bromine, making water easier on skin, hair, swimsuits, and your hot tub’s surfaces. FROG Sanitizing Minerals condition the water for softness and absorb acid to help keep pH balanced
The Bromine Cartridge can be dialed in to meet your spa’s precise needs and is designed to last 2-4 weeks. It’s prefilled, making replacement quick and easy, plus it’s recyclable when empty
Only FROG Test Strips show the ideal low bromine level of 0.5-1.0 ppm for FROG hot tubs, other test strips may indicate bromine levels are too low, causing confusion. FROG Test strips help you dial in the correct low bromine levels in your hot tub, which can make your Bromine Cartridge last twice as long.

Product Description

rubyleecarvin

July 22, 2025

Came as expected and is a good price

rawade

May 2, 2025

Shrimpton and good condition works perfectly

j. wan

April 22, 2025

These are definitely worth the money. Each cylinder last about 3-4 weeks and work fast.

Tammie S. Watts

April 14, 2025

buy again

Andee

March 6, 2025

I have always used Frog products and have no complaints.

Hawgdog

March 1, 2025

Use these items continually without any issue.

Customer

January 26, 2025

I purchased a 4 pack of frog serene replacement bromine cartridges for hot tubs which was supposed to include frog test strips. However it came with the frog ease test strips. The description of the test strips when ordered clearly said not for use with frog ease. The wrong frog ease test strip 30 count was sent. I contacted the manufacturer who said it’s an Amazon issue. I didn’t realize til after the return window closed. So I’m stuck with tests strips I can’t use.

flash

November 6, 2024

Good price

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4 FROG Serene Bromine Replacement Cartridges for Hot Tubs for use only with FROG Serene Floating Sanitizing System + FROG Test Strips, Quick and Easy Sanitizer + Test Strips

About this item

Product Description