Diffuser Downpipe Adapter 18/14MM

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An improved adapter / downpipe for the Black Leaf Percolator bong. The bottom of the adapter has 6 notches for a better distribution of air bubbles. The adapter is suitable for all bongs with a 18,8MM connection. With this handy adapter you make a bong suitable for pre-coolers and bowls with a 14,5MM connection.