(8 customer reviews)



Did you know that before water reaches your tap, it may travel through unsafe pipes, unclean tanks, or containers, leading to potential contamination? Ef-Chlor overhead tank water purification tablets ensure you have guaranteed safe water every day. Many people are unaware of the proper usage of NaDCC tablets in both overhead and underground water tanks. Simply drop one tablet of Ef-Chlor water purification tablets for household water tanks containing up to 1000 liters of water. This helps eliminate 100% of bacteria and all known viruses within 30 minutes. Ef-Chlor stands out as the best water purification tablet for household tanks worldwide.

Ef-Chlor is a renowned brand of NaDCC tablets designed for drinking water purification, disinfection, and sterilization. It serves various purposes, including purifying clouded water for household drinking, sterilizing equipment, or disinfecting surfaces at home, office, clinic, hospital, or in food manufacturing or service industries.

NaDCC Tablets, containing 60% chlorine with an effervescent additive, reduce the chlorine taste and ensure the product is safe from possible overdose. Ef-Chlor is the most preferable NaDCC tablet commonly used and recommended by the World Health Organization (WHO), major aid agencies, disaster relief agencies, NGOs, municipal corporations, ministries of health, peacekeeping/defense forces, marine, airlines, and more.

✓ 142 NaDCC Tablets of 3.5gm, Use 1 Tablet In 1000 Litres of Water
✓ NaDCC Based Chlorine Tablets For Water Purification Use Only

#1 Overhead Tank Water Purification Tablets

Ef-Chlor 3.5gm Best NaDCC Tablet - Best Overhead Tank Water Purification Tablets, How Water Purification Tablets Work In Overhead Tank, Importance of Water Treatment Tablets For Overhead Tank

Ef-Chlor stands out as the most popular choice for overhead tank water purification tablets, effectively eliminating pathogenic microorganisms from water. Ef-Chlor water disinfection tablets contain NaDCC, also known as Sodium Dichloroisocyanurate, which is a form of chlorine used for water purification, disinfection, and sterilization purposes. In today’s context, Ef-Chlor’s water purification tablets are extensively utilized for drinking water purification, acting as a disinfectant, cleansing agent for washing fruits and vegetables, surface cleaning, and sterilization.

These water purifying tablets ensure water safety without the need for boiling. It is advisable to keep NaDCC chlorine tablets handy at all times, especially considering the unavailability of pure, safe, or potable water consistently. The most effective method to safeguard yourself is by using an Ef-Chlor 3.5gm NaDCC tablet, capable of purifying 1000 liters of water in tanks


Advantages and Benefits of Overhead Tank Water 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 Overhead Tank

Drinking water, often referred to as potable water, is safe for consumption and suitable for use in food preparation. Pure water is a fundamental requirement for maintaining good health among human beings. Unfortunately, billions of people worldwide still face challenges in accessing potable water, resorting to either untreated drinking water or utilizing water from unsafe and contaminated sources. In situations where the drinkability of water is uncertain, the use of the best water disinfectant tablets becomes essential. These tablets play a crucial role in eliminating contaminants and hazardous substances from the water, ensuring it is pure and safe for consumption or for various other purposes

How Water Purification Tablets Work In Overhead Tank

When introduced into water, Ef-Chlor dissolves, releasing a carefully measured dose of Hypochlorous Acid (free available chlorine), a universally recognized safe and effective water disinfectant. These water purification tablets demonstrate rapid action in overhead tanks, purifying water within a span of 30 minutes. Once the water is disinfected, it becomes safe for consumption. Ef-Chlor proudly holds the title of the world’s number one brand in water purification, disinfection, and sterilization tablets.

These fast-dissolving, effervescent NaDCC tablets serve a variety of purposes, including water purification, treatment, disinfection, and sterilization. Ef-Chlor water purification tablets, based on Sodium Dichloroisocyanurate (NaDCC/SDIC), effectively eliminate microorganisms in the water, preventing waterborne diseases such as cholera, typhoid, jaundice, diarrhea, dysentery, giardiasis, polio, infantile diarrhea caused by rotavirus, candidiasis, bacillary dysentery, skin infections, Escherichia coli (E. coli) bacterial infections, urinary tract infections, and more.

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





Purify Upto 1000 Litres of Water


142 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 3.5gm NaDCC TabletsEfchlor - How to Use 3.5gm NaDCC Tablets, Advantages and Benefits of Overhead Tank Water Purification Tablets

✓ For emergency use with clouded water: Dissolve 1 tablet in 500-700 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 1000 litres of clean and clear water. (Water from boreholes and clear municipal tap water).

Packaging: 142 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) 3.5gm | Available chlorine 2.1gm

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 3.5 gm tablet.

8 reviews for Water Purification Tablets For 1000 Litres – 3.5gm NaDCC Tablets
  1. Leatha (verified owner)

    The item and the design are very cool. Also the support is amazing, they always help you with any detail that you have.

    1 product
  2. Rocio (verified owner)

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

    1 product
  3. Irma (verified owner)

    Perfect personalized item for private label manufacturing.

    1 product
  4. Vidal (verified owner)

    Want some more customization possible.

    1 product
  5. Amie (verified owner)

    Been using it for a while, I usually don’t write a review but this time I am truly convinced to write.

    1 product
  6. George (verified owner)

    Been using a lot of items, this one is obviously the best.

    1 product
  7. Eldon (verified owner)

    This is the best support for a product I had so far, they reply quickly and solve themselves the problems most of the time. Kudos guyz

    1 product
  8. Dahlia (verified owner)

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

    1 product

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