16 Gallon with 3 Inch Diameter Torpedo Pro Kit. Torpedo Pro still includes sight glass. You can use this sight glass as an infusion chamber or gin basket to house botanicals. You can also clamp in sight glass below the reflux condenser to watch the reflux action. An awesome way to infuse the vapor to get a boost of flavor in the distillate. Run a strawberry brandy and add some fresh strawberries to the sight glass to infuse the vapor with the taste of fresh strawberries or add cinnamon sticks, herbs, and spices to make a spiced whiskey. Be creative and make your own infusions. Use coupon code [blackfriday22] at checkout to get 10% off.