SC Protium 2.0 Protium Reservoir Tube – 150mm RT-150-60 The Protium 2.0 Reservoir Tube is compatible with all Protium 1.0 and 2.0 D5 Reservoir Combos, Reservoirs and Pump Tops. The Reservoir Tube attaches to the top thread of any Protium 1.0 or 2.0 D5 Pump Top. It comes in 4 different sizes, 100mm, 150mm, 200mm and 250mm. Specifications: Protium Reservoir Tube: 60mm OD. 150mm. Cast Clear Acrylic. CNC Machined. x1. Weight: 0.15kg. Dimensions: 60mm OD. 150mm Installation: Change the size of the reservoir tube on your Protium 1.0 or 2.0 D5 Reservoir Combo or Reservoir. Add to stand alone Protium 1.0 or 2.0 D5 Pump Tops to create a combo (other components required). Compatible with Singularity Computers Products only.