Anti-Scale Replaceable Core

$8512 interest-free installments of $ 708

It arrives free in 3 working days See all shipping methods
Pura life-time warranty
Buy on Amazon
Protected Purchase, receive the product you expect or we will refund your money.
Need help?

The replacement inner core of each PURA BIG SOFT is designed for a specific function: to prevent further scale buildup and clean pipes from previously formed scale. Our technology, formulated with Sodium Hexametaphosphate crystals, neutralizes the incrustation in all types, materials, and diameters of pipes.

Its lifespan averages one year of use in hard water conditions.


  • Limescale
  • Remove limescale build-up
  • Maximum Performance: Professional-grade HMFS (Sodium Hexametaphosphate) technology for enhanced efficiency and dual-action effectiveness (preventing scale buildup and cleaning existing scale).
  • Low pressure loss.
  • Constructed with sterilized elements to prevent bacterial growth.
  • Surface treated with antimicrobial protection.
  • Corrosion-resistant materials.
  • BPA FREE. Food-Grade Components.
  • Ideal for a wide range of applications, including residential, commercial, and industrial use. Specifically designed for water treatment, does not impart taste, odor, or color to water.

Renew your Anti-Scale PURA BIG SOFT

Uses: As a replacement for the anti-scale filter installed prior to a water tank. As an anti-scale filter installed before a machine that needs protection.

Cutting-Edge Technology

The PURA SOFT Anti-Scale Core is made up of small amorphous crystals of high-purity Sodium Hexametaphosphate. The technology of the materials and manufacturing provides the highest rigidity, durability, and ensures that the dissolution effect in the water is optimal.

Due to the quality of our raw materials, components, and advanced manufacturing process, PURA SOFT is of technical grade, for professional use, without adding harmful elements to the treated fluid, nor any taste or odor, making it ideal for applications where scale formation needs to be eliminated and prevented from spreading.


Replacing your Anti-Scale Core.

1. Turn off the water supply to the tank.
2. Use the provided wrench to open the filter housing.
3. Remove the old Anti-Scale Core from the housing and dispose of it properly. IMPORTANT: Remember, you can take it to a PURA Store for us to give it a recycling-related destination.
4. Insert the new Anti-Scale Core into the housing, ensuring it is seated properly.
5. Close the housing back onto the water line and tighten it securely.
6. Turn on the water supply and check for leaks.
You are ready to go, your Anti-Scale PURA BIG SOFT is totally renewed.


The replacement of this replaceable internal purifying core is the only maintenance your PURA equipment needs, as it is designed with durable parts meant to last a lifetime. The only maintenance required is to replace the unique internal purifying core once you’ve treated 365,000 liters of water, free from scale buildup (equivalent to a year’s worth of water consumption for an entire household).

Every PURA customer can rest assured knowing that the internal Purification Core is available whenever needed. We maintain a continuous inventory of replacement parts and components to respond promptly to any remote eventuality.

    • Easy Change and Worry Free. The only maintenance, the replacement of its unique replaceable internal Anti-Scale Core is easy and fast.
    • PURA Community: We notify you when it’s time to change the Anti-Scale Core.
    • Get your original PURA replacement, always, when you need it.
    • Free of special maintenance. No cleaning required.