I am looking for a flat round hard plastic in a disc shape. Having opening on one side of the disc. Liquid (water consistency) must flow in one direction only without contaminating (zero contamination) on the other side. The depth of the plastic disc (thickness) should be as flat or should be as minimal as possible. Preferably the thickness should be 1/8 inches or less in most of the area of the disc and can be thicker (preferably up to 3/4 inch maximum) on the area where liquid pours through. Container/wrapper where the disc is placed is non-pressurized.
Diameter of disc will be flexible. To start with we can have the diameter of the disc to be [url removed, login to view] inches.
Any questions, please ask me.