High quality nylon membranes are suitable for filtering aqueous solutions and most organic solvents. Suitable for use with a wide range of biological preparations and can be used where other membranes are unsuitable or difficult to use. Membranes are hydrophilic, eliminating the need for wetting agents that could be extracted when filtering aqueous solutions. Membranes are flexible, durable and tear resistant, and can be autoclaved at 121ºC.