These syringe filters are designed for the economical, rapid filtration of almost any solution prior to analysis. -Non-sterile -Filters made with 13 mm or 25 mm membranes are suitable for use with samples of 1 mL or greater -Ideal for most HPLC and GC sample and solvent preparations The housing attaches to any standard Luer hub syringe, so the sample can be pushed through the membrane under pressure. The resulting eluent is free from particulates and ready for use with HPLC, GC or other analytical techniques. Nylon membrane has inherently hydrophilic characteristics and works well with aqueous as well as most solvent-based samples.