Filtration unit made of PTFE with cone size 29 for connection to a vessel with socket size 29. Multi-stage hose connector with integrated lock screw for vacuum tubing with inner Ø 6 and 8 mm, filtration surface 13,8 cm2, easily exchangeable filtering membrane Ø 47 mm. Filling vessel made of PFA with PTFE lid for protection against contaminations. - FDA conform. Filtration unit made of PTFE with cone size 29 for connection to a vessel with socket size 29. Multi-stage hose connector with integrated lock screw for vacuum tubing with inner Ø 6 and 8 mm, filtration surface 13,8 cm2, easily exchangeable filtering membrane Ø 47 mm. Filling vessel made of PFA with PTFE lid for protection against contaminations. - FDA conform.