2.5″x10″ 5-micron Carbon Block Sediment Filter | Ao-wh-pre-rc2 | Nsf Certified
Fine carbon dust on the filters can be rinsed off or flushed. Certified Performance: NSF Certified to Standard 42, ensuring effective removal of particulate class V for improved water quality. External Testing Certification: NSF 42 – Reduces aesthetic impurities.