This Copper Parrot Spout is a distillation accessory, that was conceived to be used with an Alcoholmeter (not included). By connecting to the output beak of the Alembic Still deposit, and also placing the Alcoholmeter in the specific place of the superior upper part of the piece, it will be possible to measure the degree of alcohol of the distillate more easily. It is indeed a very practical accessory for distillers. PLEASE NOTE: Acoording to its structure and functionality, this Copper Parrot Spout is only recommended for Alembic Still capacities above 5 liters.