Syringe Filters, Acrodisc with 13mm Ghp hydrophilic polypropylene Membrane (1000/Cs) by. Syringe Filters, Acrodisc with 13mM Ghp Mem. $1,960.26. GHP membrane, diam. 25 mm, pore size 0.45 μm - Sigma-Aldrich. Acrodisc® syringe filters GHP membrane, diam. 25 mm, pore size 0.45 μm; find -Z259845 MSDS, related peer-reviewed papers, technical