Preemo DIY glycerine top section. A glycerin coil diffuser is the ultimate method for cooling your smoke, especially when the tube wraps many times to create the coil. This provides more surface area and a longer path for the smoke to travel through the freezer-chilled tube, giving it ample time to cool down your smoke.Β
Glycerine coil cooler
β’Β Thickness: 7mm
β’Β Joint: 19mm
β’Β Base diameter: 130mm
β’Β Colors: black | blue | green | orange | red








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