Pall Corporation is a company headquartered in USA. The focus of production is filtration plants and products. Pall is spezialised in syringe filters offered by Altmann Analytik which are ideal for HPLC and UHPLC automated sample processing and sample clarification. These filters are available in different diameters and membrane materials, called Supor and Acrodisc:
Pore Size: 0,1 µm - 10,0 µm
Filter Diameter: 4,0 mm - 50,0 mm
Material: GF, PA, PA/GF, PES, PES/GF, PP, PP/GF, PSU, PTFE, PVDF
Here you can find more information about Pall syringe filter.