Distilled water 1000ml

Polypropylene is transparent, so the solution inside the bottle can be checked by visual inspection.

Polypropylene as a sealed container is water-tight, light, unbreakable at room temperature, inert and

does not react with the solution.

The liner inside the cap in contact with the solution (plug) is also made of Polypropylene.

At the base of the cap is a Viskering seal which guarantees bottle tamper resistance.