Composed of ABS spike with standard air vent in PVC, with 0.45 micron filter and polyethylene cap; 6 cm chamber in PVC with macro drip chamber (20 drops=1±0,1 ml) and 15 micron solution filter; PVC no memory tube, inner and outer diameter around 4,1x3mm; ABS roller; latex-free injection point in isoprene; ABS terminal with PE cap. It is possible to use it with an ABS flow regulator and to assemble to the luer lock terminal a 21G needle (0,8x38mm) with its protection PE cap. .