The polyamide membrane filter by Whatman is made from pure polyamide making it the universal filter for clarification and sterile filtration. It is mechanically very strong and exhibits great wet strength and dry strength. It is hydrophilic, making it suitable for aqueous and organic solutions. This membrane filter can be used up to 135°C and can be autoclaved at up to 134°C. Polyamide membrane circle, NL16. Diameter: 25mm. Pore Size: 0.2µm. 100/Pack. Whatman #: 10414006.