The Dichro Sphere Carb Cap is specifically designed for use with a Terp Slurp nail. because this unique style of nail features built-in airflow control, the compatible carb cap does not. The solid design of the Dichro Sphere allows you to get the most out of a terp slurp, because any additional airflow from a carb cap would reduce the pressure inside the bucket, weakening the hit and decreasing temperature. Two things you don't want!

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