Specifications include, but are not limited to: Requirements: Cartridge filters must be NSF certified Dimensions: Outside Diameter: 2½” (6.4 cm) Inside Diameter: 1” (2.7 cm) Length: 40” (102 cm) Configuration End: Heat bond fused, not glued Closed end: SOE flat closed end (see photo) Open end: External 222 o-rings (Retrofits other manufacturers’ Code 0) Materials of Construction Filter Media: Polypropylene, Meltblown Gasket/O-rings EPDM or Buna N Performance: Filter Grade: 1 micron NOMINAL Max. Diff Pressure: 50 psid (3.45) @ ambient 25 psid (1.72 bar) @ 140°F Recommended Change Out Differential Pressure: 35 psid (2.4 bar) Use Pre-RO treatment Purity Filter cartridges must be free of surfactants, anti-static agents, binders, and adhesives Toxicity All polypropylene components meet the specification for biological safety as per USP for Class VI-121°C plastics (gaskets/o-rings excluded) FDA Listed Materials Manufactured from materials, which are listed for food contact applications in Title 21 of U.S. Code of Federal Regulation