13 mm PTFE Syringe Filter 0.45 u are non-sterile syringe filtersuniquely designed to meet the advance standards for laboratory experiments. The syringe filters are ideal for carrying out the filteration of organic solvents, aqueous solutions, air/gas etc. The PTFE syringe filters easily fit into a variety of sizes of syringes. They provide a minimum holding up of a sample and can withstand heavy pressure. The syringe filters are compatible with a wide range of samples, solutions, and chemicals to prevents any cross contamination due to leaching or extraction activity. The PTFE syringe filters are produced in a high-quality environment under controlled conditions. The membrane of the filter provides minimum binding of protein samples thus reducing the overall loss of sample.