This 1 Liter Vacuum Filter Funnel system is made of durable polypropylene, PEEK and stainless steel. It is easy to set up and use, and is virtually indestructible. Complete 1 Liter Vacuum Filter Funnel system includes: vacuum filter manifold (w/ O-ring, GL-45 Cap, 53B Cap, stainless steel vacuum port), filter retainer ring, 1 Liter capacity plastic funnel, stainless steel filter support, and