Hydrophilic PES Membranes – Hangzhou Anow Microfiltration Co.,Ltd. ANOW offers – Hydrophilic PES Membranes,Membranes and various filters. ANOW passed ISO9001 and ISO13485 certification. PP Filter for NSF Certification. PES Capsule Filter SF14920, .22 um , 67mm dia x 90mm long, 1/4 . PES Capsule Filter, 0.22 um, 67mm, 90mm long, 1/4 in. MNPT