---
product_id: 671048382
title: "FROG Serene in-Line Cartridges for Hot Tubs That Have Built in Cartridge Holders, FROG Serene Mineral Cartridge + 3 Bromine Cartridges (200 Grams)"
brand: "frog"
price: "VT149928"
currency: VUV
in_stock: false
reviews_count: 5
category: "Frog"
url: https://www.desertcart.vu/products/671048382-frog-serene-in-line-cartridges-for-hot-tubs-that-have
store_origin: VU
region: Vanuatu
---

# 4 months mineral cartridge lifespan dual sanitizing action for crystal clear water 50% less bromine usage FROG Serene in-Line Cartridges for Hot Tubs That Have Built in Cartridge Holders, FROG Serene Mineral Cartridge + 3 Bromine Cartridges (200 Grams)

**Brand:** frog
**Price:** VT149928
**Availability:** ❌ Out of Stock

## Summary

> 💦 Dive into crystal-clear luxury with zero hassle!

## Quick Answers

- **What is this?** FROG Serene in-Line Cartridges for Hot Tubs That Have Built in Cartridge Holders, FROG Serene Mineral Cartridge + 3 Bromine Cartridges (200 Grams) by frog
- **How much does it cost?** VT149928 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/671048382-frog-serene-in-line-cartridges-for-hot-tubs-that-have)

## Best For

- frog enthusiasts

## Why This Product

- Trusted frog brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Spa Care:** Prefilled cartridges eliminate measuring and mess—just swap and soak.
- • **Seamless Compatibility:** Designed for select Marquis, Caldera, Artesian, and Hot Spring spas with built-in cartridge holders.
- • **Gentle on Skin & Surfaces:** Uses 50% less bromine, reducing odors and protecting your skin, swimsuits, and spa surfaces.
- • **Dual-Action Sanitizing Power:** Combines bromine and minerals to kill bacteria two ways for superior water quality.
- • **Long-Lasting Mineral Cartridge:** One cartridge keeps your water soft and balanced for up to 4 months.

## Overview

The FROG Serene In-Line Cartridge Replacement Bundle offers a premium, dual-action sanitizing system combining bromine and mineral cartridges. Designed for select hot tubs with built-in cartridge holders, it delivers weeks of softer, clearer, and easier-to-maintain water by reducing bromine use by up to 50%. Prefilled cartridges simplify maintenance—no measuring, no mess—ensuring a spa experience that’s both luxurious and skin-friendly.

## Description

The FROG Serene System is so popular, some hot tub brands have built it directly into their hot tubs. It makes hot tub care even easier, and your hot tub experience even more luxurious. With FROG Serene, there’s no measuring the right amount or constantly adding chemicals. You simply replace your FROG Serene Cartridges when they’re used up. You enjoy weeks of Fresh Mineral Water - that’s what FROG delivers with FROG Sanitizing Minerals and a low level of bromine! And that makes water feel softer and look crystal clear. This FROG Serene In-Line Cartridge Replacement Bundle gives you weeks and weeks of ahhmazing hot tub water, for use in In-Line Systems. The FROG Serene Mineral and Bromine Cartridges fit in the Cartridge Holder installed on select Marquis Spas, Caldera Spas and Hot Spring Spas. This bundle includes 1 FROG Sanitizing Mineral Cartridge, which lasts 4 months; minerals kill bacteria, 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! *Compared to the minimum ANSI recommended bromine level of 2.0 ppm for a hot tub

Review: Price
Review: Easy To Use

## Features

- 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 kills bacteria 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 kill bacteria 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 kill bacteria, 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 kill bacteria 2 ways

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CKFJN7PP |
| Brand | FROG |
| Country of Publication | USA |
| Customer Reviews | 4.7 out of 5 stars 65 Reviews |
| Item Form | Cartridge |
| Item Weight | 2 Pounds |
| Manufacturer | FROG |
| Number of Items | 1 |
| Product Benefits | Maintains Clean Sanitized Water, Makes Water Clearer and Softer, Easier to Maintain |
| UPC | 722906005643 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** FROG
- **Item Weight:** 2 Pounds
- **Item Form:** Cartridge
- **Product Benefits:** Maintains Clean Sanitized Water, Makes Water Clearer and Softer, Easier to Maintain
- **UPC:** 722906005643

## Images

![FROG Serene in-Line Cartridges for Hot Tubs That Have Built in Cartridge Holders, FROG Serene Mineral Cartridge + 3 Bromine Cartridges (200 Grams) - Image 1](https://m.media-amazon.com/images/I/410YV0DlveL.jpg)
![FROG Serene in-Line Cartridges for Hot Tubs That Have Built in Cartridge Holders, FROG Serene Mineral Cartridge + 3 Bromine Cartridges (200 Grams) - Image 2](https://m.media-amazon.com/images/I/51nPr9k4-JL.jpg)
![FROG Serene in-Line Cartridges for Hot Tubs That Have Built in Cartridge Holders, FROG Serene Mineral Cartridge + 3 Bromine Cartridges (200 Grams) - Image 3](https://m.media-amazon.com/images/I/61AL-3qwBzL.jpg)
![FROG Serene in-Line Cartridges for Hot Tubs That Have Built in Cartridge Holders, FROG Serene Mineral Cartridge + 3 Bromine Cartridges (200 Grams) - Image 4](https://m.media-amazon.com/images/I/61Y6j+6PcyL.jpg)
![FROG Serene in-Line Cartridges for Hot Tubs That Have Built in Cartridge Holders, FROG Serene Mineral Cartridge + 3 Bromine Cartridges (200 Grams) - Image 5](https://m.media-amazon.com/images/I/61gMO1qP+GL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Price
*by E***. on 26 September 2025*



### ⭐⭐⭐⭐⭐ Easy To Use
*by A***R on 29 November 2024*



### ⭐⭐⭐⭐ Good set, but...
*by O***R on 23 October 2025*



## Frequently Bought Together

- FROG Serene in-Line Cartridges for Hot Tubs That Have Built in Cartridge Holders, FROG Serene Mineral Cartridge + 3 Bromine Cartridges (200 Grams)
- FROG Test Strips for Pools and Hot Tubs, Quick and Easy Pool and Hot Tub Test Strips, Designed to use with FROG Water Care Products
- FROG Jump Start Fast and Easy Startup Chlorine Shock for Hot Tubs

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---

*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-01-29*