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Natural cleaning that really works
Pipes and drains

Caustic soda drain unblocker

Liquid · Sinks, basins, showers, bathtubs · Ecocert certified

  • Unblocks, degreases and cleans, dissolves fats, soap and organic matter
  • 20% naturally derived caustic soda, ECOCERT certified, liquid version
  • Leave to act for 30 min, rinse with hot water (500 ml unblocking, 250 ml maintenance)
Size
1 L
Ref.
1021000
EAN
5400258210001
Caustic soda drain unblocker, 1 L

How to use it

1

Unblocking: pour 500 ml (1/2 bottle).

2

Maintenance: pour 250 ml (1/4 bottle).

3

Leave to act for approx. 30 min, then rinse thoroughly with hot water.

4

Repeat if necessary.

Does your product have a different label? That's normal: we have renewed all our labels. All our products are just as effective and reliable as before, so the instructions for use have not changed.

In detail

Formulated with 20% naturally derived caustic soda, it directly attacks grease, soap scum, and organic matter clogs blocking pipes. It unblocks, degreases, and cleans in a single operation, working quickly in 30 minutes. Suitable for all kitchen and bathroom plumbing and septic tank connections under normal conditions of use.

Where to buy

Where to buy this product

Online from our partners, or in a shop near you.

These retailers deliver this product to your door.

Indicative prices, checked on 26/08/2026 on the retailers' websites. The price shown by the retailer applies.

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