Clark Scientific Bacti-Caps provide a firm, positive culture tube closure whilst allowing a controlled gas exchange.
They are an excellent and more practical alternative to cotton wool plugs!
Bacti-Caps are suitable for all standard test tube sizes and fit rimless glass and plastic tubes. With an outside diameter of 13mm, 16mm, 19mm, 25mm and 38mm.
The three flexible fins moulded on the inner wall of each cap ensuring a positive fit. Even when minor variations in tube sizes occur.
Made from chemically resistant plastic, so there unaffected by most acids, alkalis, alcohols and esters. Exclusive use of virgin material eliminates any possibility of leachable components.