Square Glass Bottle & 18 mm Black Screw Cap & Insert Dropper Cap

Frequently used packaging for essential oils, elixirs or flower essences (Bach flowers), homeopathy, natural therapies, perfumes and pharmaceutical, chemical or food liquids (vinegar, aroma, colouring, etc.).

Attractive and robust bottle made of dark glass that protects its contents from light. 

This double cover is composed of a black inner screw cap made of polyethylene plastic (PE) and bamboo wood outer lid. The screw cap is without tamper evident. The outer diameter of the cover is 25 mm Ø.

The insert dropper cap is made of transparent polyethylene (PE) plastic with a 0.7 mm Ø outlet hole: the liquid comes out drop by drop.

Hermetic closing for glass bottles with 18 mm thread

The dropper is automatically inserted when the cap is screwed into place. The cap should be pushed down and turned until the dropper cap is inserted into the mouth of the bottle. The cap has the shape of the dropper nozzle inside, which ensures that the closure of the cap is watertight for glass bottles with 18 mm or DIN18 screw.

We have different models and finishes of closures for glass bottles with 18 mm and DIN18 threads, in particular caps with dropper caps with two outlet hole diameters: standard hole of 0.7 mm in diameter for liquids in general and hole of 1.6 mm in diameter is specific for liquids with higher viscosity such as oil.

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