For a complete LISTING on:
Cellulose Acetate (CA), Cellulose Nitrate (CN), Mixed Cellulose Ester (MCE), Nylon,
Polycarbonate (PC), Polyethersulfone (PES), Polyvinyldifluoride (PVDF), and PTFE membranes.

CLICK on LINK below.
http://www.e-lspi.com/category/1821-membranes-all-types-circle-disks-sheets-rolls-camcenypcpesagptfe.aspx