Since 2001, Capsule Technologies has encapsulated more than 700,000 industrial filter cartridges, providing customers with customized, safe, easy to change capsule filter designs. Features: – Capsules fit 2-inch to 40-inch length industry-standard filter cartridges. – Available in clear or black for light-sensitive fluids. – 100% FDA approved polypropylene components. – Seals either single open end (222) or double open end filters. – Proprietary thermal bonding process for positive sealing of filter cartridge. – Additional connection options are also available.