This Puradisc 25 syringe filter combines premium quality and economy. The filter is ideal for the quick, efficient filtration of samples up to 100 ml volume. It is produced from pigment-free polypropylene and has standard inlet (female luer lock) and outlet (male luer) connections (unless otherwise stated). Options include a sterile, medical-grade blister pack for critical applications and a special tube tip outlet that allows the sample to be accurately dispensed into a micro-vial, eliminating air lock. Membrane: Nylon. Retention: 0.45µm. 50/Pack. Whatman #: 6784-2504.