Cat. No Model Description Unit Prices F13-61-721 NY02025  Nylon Membrane Filter Φ 25 ㎜ 0.2 ㎛ 100/PK Inquiry F13-61-723 NY04525  Nylon Membrane Filter Φ 25 ㎜ 0.45 ㎛ 100/PK Inquiry F13-61-731 NY02047  Nylon Membrane Filter Φ 47 ㎜ 0.2 ㎛ 100/PK Inquiry F13-61-733 NY04547  Nylon Membrane Filter Φ 47 ㎜ 0.45 ㎛ 100/PK Inquiry