Liquid drain cleaner (unclogging) for siphons and drains. Simple and effective use. Ready-to-use.

Ready-to-use cleanser which opens clogged drains in toilets, sanitary facilities and kitchens.

Application areas

Easily dissolves organic materials (hair, soap residue, paper, etc.) which usually cause clogging.


Use undiluted.

Instructions for use

Carefully pour approximately 0.5 l siffex directly into the drain.
Allow to act for at least 1 hour.
Rinse with plenty of water.
Drains which are frequently clogged can be treated preventively with 0.25 l siffex every 4 weeks.

Special advice

In case of eye or skin contact, rinse immediately with plenty of water; if irritation persists, consult a doctor.
Do not mix siffex with other products.
Siffex corrodes aluminium and leaves white spots on textiles.
Observe the EU safety data sheet.
The manufacturer declines all responsibility for damages from improper product use.

Technical data

Storage stability: at least 2 years
pH value (concentrated): 12.5
Ingredients: bleaching agent based on chlorine, alkaline salts

Specific References