Caustic soda standing water drain unblocker
Gel · Sinks, basins, showers, bathtubs · Ecocert certified
- Unblocks, degreases and cleans, dissolves fats, soap and organic matter
- 20% naturally derived caustic soda, ECOCERT certified, gel formula that sinks through standing water
- Leave to act for 30 min, rinse with hot water (500 ml unblocking, 250 ml maintenance)
- Size
- 1 L
- Ref.
- 1021050
- EAN
- 5400258210506
How to use it
Unblocking: pour 500 ml (1/2 bottle).
Maintenance: pour 250 ml (1/4 bottle).
Leave to act for approx. 30 min, then rinse thoroughly with hot water.
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 dissolves grease, soap scum, and organic matter blockages. Its dense gel formula is engineered for fully blocked drains: it cuts directly through standing water without diluting to target the clog head-on, where liquids would disperse. Suitable for kitchen and bathroom drains, septic tanks, and grease traps.
Where to buy this product
Online from our partners, or in a shop near you.
These retailers deliver this product to your door.
Amazon FR
Go to the shop
Bol BE
€17.49
Go to the shop
Market on Web BE
Go to the shop
Hubo BE
Go to the shop
Dema BE
Go to the shop
Stock Ath BE
Go to the shop
Indicative prices, checked on 26/08/2026 on the retailers' websites. The price shown by the retailer applies.
These chains stock this product. Ranges vary from one shop to another: call before you go.
Please note: not every shop carries the full range. Call before you go for a specific product.
Map data © OpenStreetMap. Postcodes © GeoNames, CC BY 4.0.
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