Bromex Slow-Dissolving Bromine Tablets 2.5 kg for Spa
Bromex Slow-Dissolving Bromine Tablets 2.5 kg for Spa

Bromex Slow-Dissolving Bromine Tablets 2.5 kg for Spa

$59.99
$59.99
25% off
$79.99

BROMEX TAB is an effective sanitizer designed to destroy bacteria and algae in spa water. Formulated with stabilized bromine, it provides consistent and long-lasting disinfection, even at high temperatures. Unlike chlorine, bromine remains active in hot water, keeping your spa clear, clean, and odor-free at all times.

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  1. Wait until the existing chlorine or bromine has almost completely disappeared before changing treatments.
  2. Thoroughly clean the dispenser, feeder, and filtration system to remove residue from the old product.

  3. For a spa, it is recommended to completely drain the water.

  4. For a pool, a complete drain is usually not necessary.

  5. Before adding the new treatment, test the water and adjust alkalinity, pH, and disinfectant levels.
SKU: 35399

Availability

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2.5 kg format
Main Actions: Disinfect
Product Category: Sanitizers
Dissolution: Slow
Forms: Tablets
Application Method: To be placed in a float
Usage Period: Weekly
Water Balance: Bromine too low
Safety and Storage: Follow the manufacturer's instructions, Store in a cool, dry place, Protect eyes, Keep out of reach of children and animals, Avoid contact with skin
Basin Type: Spa

Precautions

Keep out of reach of children.
Potential skin sensitizer.
Reacts dangerously with acids to release toxic gas.
Do not mix with other chemicals.
Strong oxidizer – may cause fire or explosion if contaminated.
Corrosive to eyes and skin.
May cause severe burns and allergic skin reactions.
Do not inhale dust or fumes.
Wear rubber gloves and safety goggles when handling this product.
Remove and wash contaminated clothing before reuse.

Physical and Chemical Hazards

Strong oxidizer – mix only with water.
Use clean, dry equipment and handling tools.
Do not add the product into feeders or dispensers containing chemical residues.
Avoid contact with moisture, organic materials, or any other chemical substances.
Violent reaction, heat, or hazardous gases may result, potentially causing fire or explosion.
In case of decomposition, do not reseal the container tightly.
If possible, isolate the container outdoors or in a well-ventilated area and cool it with water if necessary.

Storage and Disposal

Keep the container tightly closed in a cool, dry, well-ventilated place, away from heat, open flames, or direct sunlight.

Do not store near food or animal feed.

Rinse the container thoroughly before disposal.

Do not reuse empty containers.

Recycle or dispose of according to local and provincial regulations.

First Aid

Eyes: hold eyelids open and rinse gently with water for 15–20 minutes. Remove contact lenses after 5 minutes, then continue rinsing.

Skin or clothing: remove contaminated clothing and rinse skin with plenty of water for 15–20 minutes.

If swallowed: call a poison control center or doctor immediately. Give small sips of water if the person is conscious. Do not induce vomiting unless instructed by medical personnel.

If inhaled: move the person to fresh air. If breathing has stopped, call 911 and begin artificial respiration if possible.
Bring the container or product label when seeking medical attention.

Shipping is free for this product on orders of $50 or more in Quebec and Ontario. A $10 shipping fee applies to orders under $50.

For New Brunswick, a $40 shipping fee applies regardless of the order amount.

For Nova Scotia, a $50 shipping fee applies regardless of the order amount.

Directions for Use

Maintain the following daily parameters:

Residual bromine: as recommended by the manufacturer.

Total alkalinity: 120 ppm.

Higher dosages may be required depending on water temperature and spa usage frequency.

It is recommended to periodically shock the water. Follow the directions on the chosen shock treatment product.

If foaming, cloudy water, or unpleasant odors persist, this indicates insufficient sanitizer levels.
To correct, shock the water, run circulation for 30 minutes, and wait 4 hours before using the spa.

Completely drain the spa periodically using the formula:
Spa volume (L) ÷ (10 × maximum number of daily users).

Maximum water temperature: 40°C (104°F) – limit soaking to 15 minutes at this temperature.

Key Features

Disinfection power

High concentration to effectively eliminate bacteria and contaminants for clean and safe water.

Simple and effortless

A concentrated formula that is used in two simple steps: calculate and dispense into a dispenser.

Slow dissolution

Gradually releases the product for continuous water treatment.

Peace of mind

A certified product, tested in real conditions, for maintenance without compromises.

How to use - Bromex Tab

This video guides you step-by-step on how to use Bromex Tab simply and effectively. These bromine tablets are designed to ensure constant disinfection of spa water and maintain clean, clear, and safe water during daily maintenance.

How to use the product:

  • Maintain the recommended settings daily.
  • Adjust the dosages as needed according to the water temperature and frequency of spa use.
  • It is recommended to periodically superchlorinate the spa water following the instructions for the superchlorination product used.
  • If foaming, cloudy water, or an unpleasant odor persists, this indicates an inadequate level of sanitizer.
  • To correct the situation, superchlorinate the spa water, circulate the water for 30 minutes, then wait 4 hours before use.

The differences between bromine and chlorine

Bromine or chlorine… which one to choose for your spa? Discover which is the most effective depending on the water temperature, desired maintenance and your type of spa.

Learn the advantages, disadvantages, and best practices for keeping water clean, clear, and safe throughout the season.

Compare options

Slow Dissolving Bromine Tablets for Spas - Spaguard
Slow Dissolving Bromine Tablets for Spas - Spaguard
SpaGuard’s Brominating Tablets offer a reliable and long-lasting sanitizing solution designed specifically for spas and hot tubs. These slow-dissolving tablets release bromine gradually, providing consistent and effective protection against bacteria, organic contaminants, and impurities—especially in hot water environments where bromine performs exceptionally well. Ideal for use in a floater or brominator, these tablets help maintain clean, clear, and comfortable water with minimal effort.
Read more Read less
  • Slow-dissolving formula for prolonged action
  • Highly effective in warm water
  • Fights bacteria, body oils, and organic residues
  • Gentler on skin and eyes, with less odor than chlorine
  • Continuous operation with a float or dispenser
  • 2 kg format
$81.99
$81.99
$81.99
Bromex Slow-Dissolving Bromine Tablets 2.5 kg for Spa
Bromex Slow-Dissolving Bromine Tablets 2.5 kg for Spa
BROMEX TAB is an effective sanitizer designed to destroy bacteria and algae in spa water. Formulated with stabilized bromine, it provides consistent and long-lasting disinfection, even at high temperatures. Unlike chlorine, bromine remains active in hot water, keeping your spa clear, clean, and odor-free at all times.
Read more Read less
  • Format: Stabilized bromine tablets (weight varies depending on packaging)
  • Function: Eliminates bacteria and algae in spa water.
  • Long-lasting action: Effective even at high temperatures.
  • Compatible with all types of spas.
  • Easy to dose: For simple control of bromine levels.
  • 2.5 kg format

Note: We recommend using this product with an oxidizer (Oxydex) for more complete and easy maintenance. Regularly check the bromine level with test strips to ensure clear and disinfected water.

$59.99
$59.99
$79.99
Trevi Bromine Tablets Slow Dissolving Bromine Tab for Spas
Trevi Bromine Tablets Slow Dissolving Bromine Tab for Spas
This sanitizer provides safe water disinfection. Practical, it comes in tablet form for easy dosage. It also eliminates organic waste such as perspiration, body oils and cosmetics that tend to cloud water. This tablet's formula is ideal for spas, as it remains effective even in hot water. It is odorless and gentler on bathers' skin and eyes than chlorine. It's a preferred option for people with sensitive skin or allergies.
Read more Read less
  • Bromine sanitizer for safe disinfection
  • Eliminates organic waste (perspiration, oils, cosmetics)
  • Slow dissolution for continuous and stable maintenance
  • Effective even at high temperatures
  • Odorless and gentler than chlorine on skin and eyes
  • Ideal for sensitive or allergic skin
  • Tablet format for simplified dosage
  • Must be used with a floating dispenser
  • 700g, 1.5kg or 3.75kg format

Note: We recommend using this product with an oxidizer (Oxy) for more complete and easier maintenance. Regularly check the bromine level with test strips to ensure clear and disinfected water.

$39.99
$39.99
$39.99

GUIDE

How to choose the right sanitizer for your spa

The right sanitizer is one that suits your frequency of use, sensitivity, and maintenance routine—while being compatible with your spa and accessories. The right choice simplifies balancing, reduces odors, and optimizes costs, for clear water every day. Need help? Consult our sanitizer guide to compare options and choose with confidence.

Read the complete guide

FREE spa maintenance course

A simple, hands-on course to better understand spa maintenance and enjoy a worry-free experience all year long. (Taught in French)

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FAQ


The amount of bromine to add depends on the volume of your spa and the measured level in the water. Generally, 2 to 3 bromine tablets in a floater are used for a 1,000-liter spa, which maintains a bromine level between 3 and 5 ppm. If you are using granular bromine, you usually add between 10 g and 20 g to quickly adjust the level. Bromine is more stable than chlorine in warm water, but it should still be tested regularly to ensure consistent and safe disinfection. Ideally, an oxidizer (such as a chlorine-free shock treatment) should also be used in addition to bromine to burn off impurities and keep the water clearer. Always refer to the manufacturer's guidelines to adjust the dosage to the volume of your spa.

See our different bromine products, Discover our different types of bromine, Discover our range of disinfectants, and Consulter les assainissants


To switch from chlorine to bromine, you must first completely drain the spa, clean the tub, and rinse the filter to remove all traces of chlorine. Once the spa is filled with fresh water, place bromine tablets in the float or designated dispenser. A shock treatment with active oxygen can help quickly establish the bromine level. This changeover must be done carefully to avoid chemical reactions between the two products.


Tablets: must be placed in a floating dispenser (not directly in the skimmer unless otherwise indicated by the manufacturer). For slow-dissolving tablets, plan on 2 to 3 tablets per week in a float, and less if you accompany your routine with a chlorine-free oxidant, which activates the bromine and reduces consumption.

Granules: Add once a day, unless accompanied by an oxidizing treatment, which helps maintain bromine levels for longer.

These amounts are averages: actual use of your spa may vary requirements, but they give a good idea to start with.

See our different bromine products, Discover our different types of bromine, Discover our range of disinfectants, and Consulter les assainissants


It is not recommended to mix chlorine and bromine in a spa because these sanitizers react chemically when combined. This can create unstable water, sudden fluctuations in sanitation levels, and even reduce the effectiveness of both products.

If you want to switch from chlorine to bromine (or the opposite), you must fully drain the spa, clean the shell, and rinse the filters to remove all traces of the previous sanitizer. Once the spa is refilled with fresh water, you can start your new maintenance routine. Mixing chlorine and bromine in the same spa is never recommended.


Both chlorine and bromine disinfect spa water very well.

  • Chlorine: cheaper, acts quickly, but stronger odor and less stable in hot water.
  • Bromine: more stable in hot water, less odorous and more comfortable for the skin, but a little more expensive.

See our different bromine products, Discover our different types of bromine, Discover our range of disinfectants, and Consulter les assainissants


Add your sanitizer according to the type you use, then test the water. Aim for 3 to 5 ppm, whether you’re using chlorine or bromine.

  • Granular chlorine: add a small dose directly into the water with the jets running, wait 10–15 minutes, then test again.
  • Chlorine or bromine tablets: place them in a floater and adjust the opening to control how quickly they dissolve.

If the sanitizer level stays low even after adding product, perform a shock treatment—chlorine shock for a chlorine spa, or a non-chlorine oxidizing shock for a bromine spa.

See our different bromine products, Discover our different types of bromine, Discover our range of disinfectants, and Consulter les assainissants


Chlorine is considered too high in a spa when the level goes above about 5 ppm. At this point, the water becomes less comfortable—stronger odor, eye irritation, and dry or itchy skin. If the chlorine level reaches 8 to 10 ppm, it’s best to avoid using the spa until the level drops.

To lower high chlorine, simply leave the spa uncovered so the chlorine can naturally dissipate. Wait a few hours, then test the water again to confirm that the level has returned to a safe range.

Overall rating: 5.0 / 5 from 6 reviews.

AI Generated Review Summary

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Reviews

Durent longtemps

"Les pastilles ne fondent pas rapidement et gardent le niveau de brome très stable"

— CAROLINE C. (5/5)

super contente

"tres bon produit"

— SARA D. (5/5)

Achat local

"Bon prix, livraison rapide."

— Jean-Maxime N. (5/5)

très bon produit très satisfait

"très bon produit très satisfait"

— NATHALIE P. (5/5)

Good product

"Good product"

— Samir S. (5/5)

Merci

"Tout est parfait pour mes articles achetés"

— DICAIRE M. (5/5)

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