Works exclusively with the 20mm test tubes sold here on this website. We cannot guarantee they will work with other 20mm test tubes (some slight variations occur from different brands).
This test tube connector also can be used as a bridge between 2 1/2″ pieces of vinyl tubing.
Works exclusively with the 20mm test tubes sold here on this website. We cannot guarantee they will work with other 20mm test tubes (some slight variations occur from different brands).
This test tube connector also can be used as a bridge between 2 1/2″ pieces of vinyl tubing.
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