Suction tube 18.8mm for SPHERE
A few months back, I bought the Sphere from Herborizer and have been enjoying it quite a bit. The suction hose is a great upgrade. Pair it with a lower-airflow vaporizer like a DynaVap stem or similar and this thing milks up real quick while remaining very easy on the lungs. I had two lung resections and I have trouble with large rips but this suction hose is really nice.