Pall Corp.’s Fuente II filter cartridges are a unique combination of Ultipleat filter construction and optimized built-in pre-filtration to give longer filter life and lower filtration costs. The filter was developed as a final filter to produce sterilizing grade water. It provides a reliably stable product when applied directly before packaging. The cartridge is constructed from two layers of hydrophilic Supor polyethersulfone membrane. The single open-ended configuration is designed to fit into sanitary housings to ensure effective microbial stabilization and assembly integrity.