Disques Transparents Pour At (1X20)

Are you running out of clear discs for your black rubber rings? 

With item ATEST-02, you get 10 female discs (with a concentric circle) and 10 male discs. 

The discs are used to seal your filter. They include 10 small round pieces of paper, called “blotting paper,” onto which you can place a liquid (food, homeopathic, etc.) to test the patient’s tolerance to the substance. 

Don’t have any black rubber rings? In that case, please order the complete set called ATEST-10, which includes enough discs and black rings to make 10 filters.