PureFlo® nylon filter cartridges are highly-retentive, naturally hydrophilic nylon membrane filters that have been specially designed for critical applications. The nylon membrane in an all-polypropylene construction provides excellent chemical compatibility and superior flow per unit area as compared to other membrane cartridges. No adhesives, binders, or surfac-tants are used in the manufacturing process and all cartridges are rinsed with high-purity water to reduce extractables and downtime.