It is use copper pipe make the cooling coil cooler. The 30L(8Gal) Boiler Size:35x35x35CM, Condenser Size 20x20x13CM, Thumper Keg Size: 20x20x13CM Package included: 1x 30L Stainless Boiler 1x Thumper Keg 1x Condenser Keg 1 set necessary accessories(Fully accessories as the pictures show). International buyers please note: a. The item "30L Alcohol Moonshine Water Copper Home Stainless Distiller Brewing Thumper" is in sale since Saturday, November 23, 2019. This item is in the category "Home, Furniture & DIY\Cookware, Dining & Bar\Brewing, Distilling & Wine Making\Equipment".The seller is "powertool_online" and is located in HK. This item can be shipped worldwide.