TP 2004 Our smallest type series model TP 2004 for max. flow rate up to 57 ml/min, depending on tube dimensions and motor speed. Five different gear ratios are possible. These pumps are not suitable in conjunction with life support equipment or any in-vivo application. - Pumphead in black Rynite - 2 roller rotor in black Polycarbonate - Rollers in Nylon GK - Cover in clear Polycarbonate - Gear motor in AC or DC - Speed 20, 20, 30, 40 or 60 rpm - Tube materials: Santoprene, Norprene, ED-Plex or Silicone - Dimensions Pumphead: 64,6 x 58,0 x 30,5 mm - Dimensions with DC motor: 90,3 x 58,0 x 110,0 mm Weight: 0,25 kg - Dimensions with AC motor: 78,7 x 58,0 x 75,2 mm Weight: 0,30 kg The flow rates have been measured after 20 minutes running the pump. Water was pumped by room temperature without any pressure. We tested with Silicone tube. Other materials may cause different results.