How long do the mineral cartridges last?

The blue mineral cartridge lasts 4 months or when draining the hot tub.

What are the benefits of using bromine instead of chlorine to sanitize my hot tub?

Bromine can be an excellent alternative to chlorine for hot tubs – it is gentler on your skin, eyes and respiratory system which makes it a better option for users with sensitive skin or allergies. It also has a milder odor compared to chlorine.

How is FROG Serene different from traditional sanitizing methods?

If you are tired of chlorine odors and measuring chemicals, FROG Serene is for you. FROG Serene is not just bromine – it uses minerals to create Fresh Mineral Water in your hot tub. Prefilled cartridges eliminate guessing and handling of chemicals.

What is Fresh Mineral Water?

FROG’s Sanitizing Minerals and a low level of bromine make cleaner, clearer, softer water that's easier to take care of. It's sanitized water without the harshness of other products and with prefilled cartridges it's much easier too.

What's included in the box?

1 FROG Serene Mineral Cartridge

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Spa Frog Mineral Cartridge

Product ID: 482929309

Details

Brand
FROG
Item Weight
0.29 Pounds
Item Form
Cartridge
Product Benefits
Kills Algae
UPC
852673896233

⏳4-month replacement cycle

🦠prevents algae growth

🧪reduces bromine use by 50%

€ 139.43

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Sold byAmazon LithuaniaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Elevate your spa game with cleaner, greener water—because your oasis deserves the best!

TRUSTED QUALITY - Backed by 4.7-star rating from nearly 2,000 spa enthusiasts
ALGAE DEFENSE SYSTEM - Advanced mineral technology keeps your spa algae-free
SEAMLESS COMPATIBILITY - Designed for Spa Frog floating and in-ground systems
ECO FRIENDLY SANITIZING - Cut bromine usage in half without compromising cleanliness
EFFORTLESS SPA MAINTENANCE - Replace every 4 months for consistently pristine water

The Spa Frog Mineral Cartridge is a premium replacement filter designed for Spa Frog floating and in-ground spa systems. It reduces bromine use by up to 50%, prevents algae growth, and should be replaced every 4 months to maintain clean, sanitized water. Trusted by thousands with a 4.7-star rating, it ensures effortless, eco-friendly spa maintenance.

Specifications

ASIN	B000V86MVW
Brand	FROG
Country of Publication	USA
Customer Reviews	4.7 out of 5 stars 1,932 Reviews
Global Trade Identification Number	00722906038115
Item Form	Cartridge
Item Weight	132 g
Manufacturer	King Technology
Manufacturer Part Number	2530
Model Number	2530
Number of Items	1
Product Benefits	Kills Algae, Controls Algae, Maintains Clean Sanitized Water
UPC	852673896233 045635692299 789610246878 722906038115 789610229857
Unit Count	1 Count

Reviews

D**I

Handy and usefull

As my wife ia working its a handy product for her carry as its a pen size and as per her its saving her time for going out for grooming. Loved it overall.

25.02.2021

P**L

It's pen size that why it's easy to carry

Im working women its a handy product for me carry as its a pen size and as per me its saving my time for going out for grooming. Loved it overall.

14.03.2021

J**5

Awesome product

I truly believe this enhances the quality of my hot tub water. Don't over chemical with this in your tub-- water softeners etc are NOT needed. I just use this, the bromine cartridge, ph and hard water adjusters and occasionally an enzyme product. I shock with MPS after each use, and if I know I'm not going to be tubbing for a few days, add a bit extra bromine. Works for me!

6.04.2016

A**A

Jacuzzy

Son los que recomienda la firma de mí jacuzzy y no puedo comparar con otros. Lo que sí es cierto es que toda la gama es carisima

8.02.2020

M**2

💦

Perfect for hot tub.

2.11.2025

K**I

Four Stars

Great

16.02.2017

A**S

Works as promised.

Great price.

10.03.2026

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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2 days ago

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€ 139.43

Duties & taxes included

In stock

Sold byAmazon LithuaniaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Lithuania.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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