(17 customer reviews)


NaDCC Based Chlorine Tablets, Ef-Chlor 4gm

Overhead And Underground Tank Purification Tablets

Jar Of 20 Tablets, Use 1 Tablet In 1000-1200 Litres Water


Ef-Chlor #1 Best Water Purification Tablets For Overhead And Underground Tanks, Advantages and Benefits of Water Tank Purification Tablets, Importance of Water Treatment Tablets For Underground Tanks, How to Use NaDCC Tablets – Ef-Chlor 4gmThe Ef-Chlor 4gm NaDCC tablet stands as a reliable brand of water purification tablets designed for both overhead and underground tanks worldwide. Recognizing that water may traverse unsafe pipelines and be stored in unclean tanks or containers before reaching consumers, the potential for water contamination is a significant concern. To address this issue, Ef-Chlor water purification tablets for underground tanks provide a trusted solution, ensuring the elimination of 100% of bacteria, pathogenic microorganisms, and all known viruses.

Many individuals are uncertain about the proper usage of NaDCC tablets in water tanks. It’s as simple as dropping one Ef-Chlor water purification tablet into both overhead and underground water tanks, treating up to 1200 liters of water. This process efficiently eradicates 100% of bacteria and known viruses within just 30 minutes. Ef-Chlor stands out as the premier water treatment tablet for underground tanks globally.

In contemporary times, Ef-Chlor’s water purification tablets have found widespread application, serving as a crucial tool for drinking water purification, acting as a disinfectant, cleansing agent for washing fruits and vegetables, facilitating surface cleaning, and providing a reliable option for sterilization purposes.

✓ 20 NaDCC Tablets of 4gm, Use 1 Tablet In 1200 Litres of Water
✓ NaDCC Based Chlorine Tablets For Water Purification Use Only

#1 Water Purification Tablets For Overhead And Underground Tanks

Ef-Chlor Best Water Purification Tablets For Overhead And Underground Tanks, How Water Purification Tablets Work In Overhead And Underground Tank, Importance of Water Treatment Tablets - NaDCC 4gm TabletEf-Chlor stands out as the most popular and leading choice for water purification tablets, catering to both overhead and underground tanks, effectively eliminating bacteria and pathogenic microorganisms from water. These tablets are enriched with NaDCC (Sodium Dichloroisocyanurate), a form of chlorine renowned for its efficacy in water purification, general disinfection, and sterilization.

The NaDCC Tablets boast a 60% chlorine content, complemented by an effervescent additive that not only reduces the taste of chlorine but also ensures the product is safe from potential overdose. Ef-Chlor emerges as the preferred NaDCC tablet, widely used and endorsed by reputable organizations such as the World Health Organization (WHO), major aid agencies, disaster relief organizations, NGOs, municipal corporations, ministries of health, peacekeeping/defense forces, marine, airlines, and more.

Ef-Chlor has earned its reputation as a distinguished brand of NaDCC tablets, specifically designed for drinking water purification, disinfection, and sterilization. Its versatile applications extend to purifying clouded water and household drinking water, as well as sterilizing equipment and surfaces in various settings, including home, office, clinic, hospital, food manufacturing, and service industries.

Advantages and Benefits of Water Tank Purification Tablets
    • Very safe to handle and store, Stable tablets with 3 years shelf life.
    • Recommend by leading infection control experts worldwide.
    • Effective against virtually all known Bacteria, Viruses, and Spores.
    • Compact storage and transport reducing transport costs.
    • Economic and accurate-no under or over-dosing.
    • Greater Biocidal Effect – Rapid release clear disinfecting solution.
    • Fast dissolving and kills bacteria and viruses in just 30 mins.
    • Available in a wide selection of tablet strengths.
    • Iodine FREE & Resistant to organic spoilage.
Importance of Water Treatment Tablets For Underground Tanks

Drinking water, also known as potable water and safe to drink or to use for food preparation. Pure water is a basic necessity for human beings to maintain good health. Billions of people around the world are continuing to suffer from access to potable water, using either untreated drinking water or getting water from unsafe or contaminated sources. When you’re unsure if your water is drinkable, the best water disinfectant tablets help in removing contaminants and hazardous substances from the water, making it pure and safe to drink or can be used for other purposes.

How Water Purification Tablets Work In Overhead And Underground Tank

When added to water, Ef-Chlor dissolves to release a measured dose of Hypochlorous Acid (free available chlorine) that is universally recognized as a safe and adequate water disinfectant. These water purification tablets work in overhead and underground tank very quickly and purify water within 30 minutes. Once water is disinfected it is safe to consume. Ef-Chlor is the world’s no.1 brand in the category of water purification, disinfectant and sterilization tablets worldwide.

These are fast-dissolving, effervescent NaDCC tablets for water purification, water treatment, disinfection and sterilisation purposes. Ef-Chlor water purification tablets based on Sodium Dichloroisocyanurate (NaDCC/SDIC) which kill microorganisms in the water to prevent cholera, typhoid, jaundice, diarrhea, dysentery, giardiasis, polio, infantile diarrhea by rotavirus, candidiasis, bacillary dysentery, skin infections, escherichia coli / e.coli bacteria infection, urinary tract infections, and other water-borne diseases.

Ef-Chlor Manufactured By Hind Pharma stands as a leading name in NaDCC tablets for water purification and disinfection purposes. You can explore the List of Best NaDCC Tablets

Additional information
Brand Name



NaDCC / SDIC, Chlorine


Purify Upto 1200 Litres Of Water


20 Tablets In A Jar

Perfect For

Drinking Water Purification, Sterilization, Home Water Purification, Household Tank Water Purification, Household Water Treatment, Overhead Tank Water Purification, Underground Tank Water Purification, Water Purification For Household Tank, Water Purification For Overhead Tank, Water Purification For Underground Tank, Water Tank Purification, Water Tank Treatment


Hind Pharma

Usage / Application

Disinfection, Fruits and Vegetables Wash, Sterilization, Surface Cleaning, Water Purification, Water Treatment

Prevent Diseases

Diarrhea, Typhoid, Jaundice, Dysentery, Giardiasis, Polio, Infantile Diarrhea by Rotavirus, Candidiasis, Bacillary Dysentery, Skin Infections, Escherichia coli / E.coli Bacteria Infection, Urinary Tract Infections, Other Water Borne Diseases

Export Worldwide

For Emergency Relief Supply, Tender Opportunity, Institutional Supply, Authorized Distributorship, Manufacturing For Export, Private Label Manufacturing

How to Use NaDCC Tablets Ef-Chlor 4gm - Importance of Water Treatment Tablets For Underground Tanks, How Water Purification Tablets Work In Overhead And Underground Tank

How to Use NaDCC Tablets, Ef-Chlor 4gm

✓ For emergency use with clouded water: Dissolve 1 tablet in 1000 litres of clouded water. Heavily contaminated water should first be filtered or allowed to settle. (Water of unknown quality, surface water and open wells.)

✓ For clear or household drinking water use: Dissolve 1 tablet in 1200 litres of clean and clear water. (Water from boreholes and clear municipal tap water).

Packaging: 20 NaDCC Tablets In 1 Jar

Dissolving Time: Wait for 30 min minimum before use.


Technical Specification & Requirement of Chlorine

Each uncoated ef-chlor tablet contains
Sodium Dichloroisocyanurate (NaDCC) 4gm | Available chlorine 2.4gm

Requirement of Chlorine for Water Treatment Across the World:

Source of WaterAmount of Chlorine Required
Bore Well Water2 ppm (2mg per litre)
Well Water3 ppm (3mg per litre)
Pond Water / River Water5 ppm (5mg per litre)

NOTE: If the water to be treated is dirty/murky/turbid/muddy then it should be filtered through a cloth such as a t-shirt/filter cloth until clear or allowed to sit until the sediment settles down. The decanted clear water should then be disinfected using Ef-Chlor 4 gm tablet.

17 reviews for Water Purification Tablets For 1200 Litres – 4gm NaDCC Tablets
  1. Bart (verified owner)

    Wished I had found this sooner, it took me a lot of money and time until I found best water purification product here!

    1 product
  2. Elza (verified owner)

    Good response from the support.

    1 product
  3. Lorenza (verified owner)

    Thanks to ef-chlor for this amazing deal, I was able to find a solution to my problem in a short time. 🙂

    1 product
  4. Deshawn (verified owner)

    I rarely leave a comment, but this item is beyond worth it! Gotta let you guys know!

    1 product
  5. Dallas (verified owner)

    I think this is amazing. Lots of features and customizable from every point of view.

    1 product
  6. Sydnee (verified owner)

    Amazing product, suitable for multiple usage i.e. drinking water purification, surface cleaning, sterilization etc.

    1 product
  7. Gus (verified owner)

    It’s far better than those similar products, while the price is still acceptable.

    1 product

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