Shake siphon valve / pump for multiple sizes pipe

A simple tool to help you work with the siphon: simply shake it up and down to draw in a small amount of liquid, when the liquid level within the pipe is low enough, the siphon will work on its own. So that you do not have to take a puff first when using the siphon.The pipe inner diameter suitable for the valve is marked on both the printed board label and the valve's outer casing. PETG printing is recommended due to its higher density.