Although it was used conventionally, liquid leakage due to falling and corrosion has occurred so purchase.
It is saved if a baffled disc made of poly material is sold separately.
Also, it is recommended that product number guidance for replacement seal material be guided.
Request to manufacturer: Since it is made of aluminum, it is vulnerable to acid / alkali / external shock.
At the very least I would like a bottle of PE material or stainless steel material to be put out only in the container (bottle) part.
Some of the water-dilutable fluorine-based mold release agents tend to be alkaline,
Where I want variations of materials.
One year of purchase, a hole was opened at the bottom of the cup about 10 months in actual use and it got water leaked. I do not put any chemicals but just use ordinary water and use it for spraying so corrosion is too early.