Helps a larger sprayer

I screwed the part to a 3-liter pressure sprayer.
The assembly was a bit fiddly, because close to the Einfüllrand the sprayer.
The function is perfect.
A real help, it is more likely to be at greater pressure sprayers, which are often used, or for people who have problems with the hand pump on pressure sprayers for health reasons.
In a 3-liter unit and occasional use you should consider whether the saved pumping work is worth 10 e.