For Hiro?-sama Only: Continuous Suction Device - Pressure Relief Valve

This is a reserved listing for Hiro?.
This is an additional part for use with a suction machine.
Pressure reducing valve assembly x 1
[How to use]
Connect the pressure reducing valve between the suction pump and the saliva bottle as shown in the second image.
The product is tightened all the way to the right. While operating the suction machine, turn the valve knob counterclockwise to gradually loosen it and adjust to your desired pressure.

If you are satisfied with this, please proceed with your purchase.
(We will leave it as is for about one week.)
*This is not a medical device.