---
product_id: 645141344
title: "FROG Serene Floating Sanitizing System for Hot Tubs, Quick and Easy Self-Regulating Hot Tub Sanitizer with Bromine and FROG Sanitizing Minerals Kills Bacteria 2 Ways, for Hot Tubs up to 600 gallons"
brand: "frog"
price: "HK$1581"
currency: HKD
in_stock: true
reviews_count: 5
category: "Frog"
url: https://www.desertcart.hk/products/645141344-frog-serene-floating-sanitizing-system-for-hot-tubs-quick-easy
store_origin: HK
region: Hong Kong
---

# 4-month mineral cartridge life Up to 50% less bromine use Dual-action sanitizing tech FROG Serene Floating Sanitizing System for Hot Tubs, Quick and Easy Self-Regulating Hot Tub Sanitizer with Bromine and FROG Sanitizing Minerals Kills Bacteria 2 Ways, for Hot Tubs up to 600 gallons

**Brand:** frog
**Price:** HK$1581
**Availability:** ✅ In Stock

## Summary

> 💦 Elevate your soak with smarter, softer spa care — because your hot tub deserves the best!

## Quick Answers

- **What is this?** FROG Serene Floating Sanitizing System for Hot Tubs, Quick and Easy Self-Regulating Hot Tub Sanitizer with Bromine and FROG Sanitizing Minerals Kills Bacteria 2 Ways, for Hot Tubs up to 600 gallons by frog
- **How much does it cost?** HK$1581 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/645141344-frog-serene-floating-sanitizing-system-for-hot-tubs-quick-easy)

## 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

- • **Precision Monitoring:** Exclusive FROG Test Strips ensure ideal bromine levels—no more guesswork or confusion.
- • **Effortless Clean Water:** Prefilled cartridges snap in for quick, no-fuss replacement every 2-4 weeks.
- • **Skin & Swimsuit Friendly:** Uses up to 50% less bromine, reducing irritation and protecting your hot tub surfaces.
- • **Dual-Action Sanitizing Power:** Kills bacteria with bromine plus unique FROG Sanitizing Minerals for fresher, softer water.
- • **Long-Lasting Mineral Freshness:** Mineral cartridge lasts 4 months, conditioning water for a spa-like softness you’ll notice.

## Overview

The FROG Serene Floating Sanitizing System is a cutting-edge, self-regulating sanitizer for hot tubs up to 600 gallons. Combining bromine and patented FROG Sanitizing Minerals, it kills bacteria two ways while using up to 50% less bromine than standard methods. Prefilled cartridges simplify maintenance, lasting weeks to months, and exclusive test strips provide precise bromine monitoring. This system delivers fresher, softer water that’s gentler on skin, swimsuits, and hot tub surfaces—eliminating constant chemical balancing and enhancing your spa experience.

## Description

FROG Serene Floating Sanitizing System kills bacteria 2 ways, with FROG Sanitizing Minerals and up to 50% less bromine*. With less bromine you'll enjoy softer feeling water that's easier on skin, swimsuits and hot tub surfaces. FROG Serene eliminates the work and guesswork of keeping your hot tub water clean. Instead of spooning in chlorine daily, you simply replace a prefilled bromine cartridge every 2 to 4 weeks depending on your hot tub size and usage. The blue Mineral Cartridge lasts 4 months (or until you drain and refill your hot tub). The system comes with one Bromine Cartridge, one FROG Sanitizing Minerals Cartridge, FROG Jump Start, a start-up shock, and FROG Test Strips, it’s ideal for hot tubs up to 600 gallons. The Mineral and Bromine Cartridge quickly and easily snap into the reusable green holder. FROG Serene creates Fresh Mineral Water in your hot tub – something no one else does. *Compared to the minimum ANSI recommended bromine level of 2.0 ppm. for a hot tub.

Review: I had been managing my hot tub myself checking all of the chemical weights. After draining my hot tub I decided to try a different approach. I placed this in and did not have any issues. We have continued to use it since while replacing the yellow one. My husband seems to like this better than the other method of balancing all of the chemicals. New filter, new water, new chemical method. No issues since. The smell is normal. Chemical smells of pool products. As far as cost, I think the longevity of the minerals makes it worth it. The bromine went a little faster than I expected. Time is money and the product seems worth it when I have a working hot tub now with less thought required.
Review: my tub came with an in-line chemical system but the plastic holder for the silver and bromine cartridges disintegrated over the course of ten years. This floater is an excellent replacement.

## Features

- FROG Serene (formerly Spa FROG) Floating System includes one Bromine Cartridge, one FROG Sanitizing Minerals Cartridge, FROG Test Strips and One FROG Jump Start startup shock packet
- FROG Serene Floating System kills bacteria 2 ways, with a low level of bromine plus FROG Sanitizing Minerals, and creates Fresh Mineral Water that improves the overall quality of hot tub water
- You use up to 50%* less bromine, making water easier on skin, hair, swimsuits, and your hot tub’s surfaces. FROG Sanitizing Minerals condition the water for softness; Cartridges are prefilled, which makes replacement quick and easy
- 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
- Only FROG Test Strips show the ideal low bromine level for FROG spa; other test strips may indicate bromine levels are too low, causing confusion. Plus, FROG Jump Start start-up shock prepares your hot tub for FROG Serene

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BG1CY186 |
| Customer Reviews | 4.6 4.6 out of 5 stars (209) |
| Date First Available | 14 April 2024 |
| Item display height | 4 inches |
| Item display length | 7 inches |
| Item display width | 4.3 inches |
| Item model number | 01-14-3883 |
| Manufacturer | FROG |
| Part number | 01-14-3883 |
| Power source type | Manual |
| Product Dimensions | 15.24 x 15.24 x 30.48 cm; 539.77 g |

## Product Details

- **Brand:** FROG
- **Item form:** Tablet
- **Item weight:** 540 g
- **Product benefits:** Kills Bacteria
- **UPC:** 722906005469

## Images

![FROG Serene Floating Sanitizing System for Hot Tubs, Quick and Easy Self-Regulating Hot Tub Sanitizer with Bromine and FROG Sanitizing Minerals Kills Bacteria 2 Ways, for Hot Tubs up to 600 gallons - Image 1](https://m.media-amazon.com/images/I/71O5lqLd+VL.jpg)

## Questions & Answers

**Q: Does this have to be used in hot water?**
A: I have always used it in my hot tub! When I turn off the hot tub and it cools I still leave it in but I think it’s mainly designed for hot tubs

**Q: This is our first hot tub, its a 6 person plug and play with an Ozone Purification sys. We added this to it, will there be any other chemicals needed?**
A: Yes you will need to balance your water chemistry one time a week Ph alkalinity and calcium. and shock or bromo boost the spa 1x month

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***A on 9 May 2025*

I had been managing my hot tub myself checking all of the chemical weights. After draining my hot tub I decided to try a different approach. I placed this in and did not have any issues. We have continued to use it since while replacing the yellow one. My husband seems to like this better than the other method of balancing all of the chemicals. New filter, new water, new chemical method. No issues since. The smell is normal. Chemical smells of pool products. As far as cost, I think the longevity of the minerals makes it worth it. The bromine went a little faster than I expected. Time is money and the product seems worth it when I have a working hot tub now with less thought required.

### ⭐⭐⭐⭐ Review
*by J***M on 12 November 2025*

my tub came with an in-line chemical system but the plastic holder for the silver and bromine cartridges disintegrated over the course of ten years. This floater is an excellent replacement.

### ⭐⭐⭐⭐⭐ Review
*by P***E on 3 June 2025*

I can always stress the frog to provide a clean chlorine, free, smell free, hot tub that my entire family can enjoy gets the water clear. It’s easy to open as easy to follow the directions.

## Frequently Bought Together

- FROG Serene Floating System for Hot Tubs - Quick & Easy Prefilled Hot Tub Sanitizer - Hot Tub Maintenance System with Sanitizing Minerals & Bromine
- FROG Serene Replacement Mineral Cartridge with 4 Replacement Bromine Cartridges for use with Hot Tub FROG Serene Floating Sanitizing System - Prefilled for Quick & Easy Hot Tub Maintenance
- FROG Jump Start for Hot Tubs - Start-Up Chlorine Shock Removes Organic Contaminants & Establishes Chlorine Level - Hot Tub Set Up & Treatment - 1 Pack

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-10*