Choose the membrane material best suited for your application. Each filter is quality tested for filter efficiency and housing integrity for use up to 75 psi (5.1 bar). Sterile filters are certified nonpyrogenic, have been gamma sterilized, and come individually packaged with lot numbers printed on for easy traceability. Minimize sample loss?designed for low hold-up Filter culture media to organic solvents?variety membrane materials cover a wide range of applications. Depend on quality?all filters are tested to withstand pressures up to 75 psi (5.1 bar). Sterile versions are certified RNase/DNase free